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ISO metric screw thread - Wikipedia

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class="vector-toc-numb">2</span> <span>Designation</span> </div> </a> <ul id="toc-Designation-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Preferred_sizes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Preferred_sizes"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Preferred sizes</span> </div> </a> <ul id="toc-Preferred_sizes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Obsolete_pre_ISO_DIN_sizes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Obsolete_pre_ISO_DIN_sizes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Obsolete pre ISO DIN sizes</span> </div> </a> <ul id="toc-Obsolete_pre_ISO_DIN_sizes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Spanner_(wrench)_sizes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Spanner_(wrench)_sizes"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Spanner (wrench) sizes</span> </div> </a> <ul id="toc-Spanner_(wrench)_sizes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Standards" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Standards"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Standards</span> </div> </a> <button aria-controls="toc-Standards-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Standards subsection</span> </button> <ul id="toc-Standards-sublist" class="vector-toc-list"> <li id="toc-International" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#International"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.1</span> <span>International</span> </div> </a> <ul id="toc-International-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-National" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#National"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.2</span> <span>National</span> </div> </a> <ul id="toc-National-sublist" class="vector-toc-list"> <li id="toc-Derived_standards" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Derived_standards"> <div class="vector-toc-text"> <span class="vector-toc-numb">6.2.1</span> <span>Derived standards</span> </div> </a> <ul id="toc-Derived_standards-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>References</span> </div> </a> <button aria-controls="toc-References-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle References subsection</span> </button> <ul id="toc-References-sublist" class="vector-toc-list"> <li id="toc-Bibliography" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Bibliography"> <div class="vector-toc-text"> <span class="vector-toc-numb">8.1</span> <span>Bibliography</span> </div> </a> <ul id="toc-Bibliography-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">ISO metric screw thread</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 20 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-20" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">20 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Rosca_m%C3%A8trica" title="Rosca mètrica – Catalan" lang="ca" hreflang="ca" data-title="Rosca mètrica" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Metrick%C3%BD_z%C3%A1vit" title="Metrický závit – Czech" lang="cs" hreflang="cs" data-title="Metrický závit" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Metrisches_ISO-Gewinde" title="Metrisches ISO-Gewinde – German" lang="de" hreflang="de" data-title="Metrisches ISO-Gewinde" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Meeterkeere" title="Meeterkeere – Estonian" lang="et" hreflang="et" data-title="Meeterkeere" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Rosca_m%C3%A9trica" title="Rosca métrica – Spanish" lang="es" hreflang="es" data-title="Rosca métrica" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Metra_%C5%9Dra%C5%ADba%C4%B5o" title="Metra ŝraŭbaĵo – Esperanto" lang="eo" hreflang="eo" data-title="Metra ŝraŭbaĵo" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Hari_metriko" title="Hari metriko – Basque" lang="eu" hreflang="eu" data-title="Hari metriko" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Filetage_m%C3%A9trique" title="Filetage métrique – French" lang="fr" hreflang="fr" data-title="Filetage métrique" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/ISO_%EB%AF%B8%ED%84%B0%EB%82%98%EC%82%AC" title="ISO 미터나사 – Korean" lang="ko" hreflang="ko" data-title="ISO 미터나사" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Metri%C4%8Dki_navoj" title="Metrički navoj – Croatian" lang="hr" hreflang="hr" data-title="Metrički navoj" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Filettatura_metrica_ISO" title="Filettatura metrica ISO – Italian" lang="it" hreflang="it" data-title="Filettatura metrica ISO" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Metrisch_schroefdraad" title="Metrisch schroefdraad – Dutch" lang="nl" hreflang="nl" data-title="Metrisch schroefdraad" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Metriske_gjenger" title="Metriske gjenger – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Metriske gjenger" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Gwint_metryczny" title="Gwint metryczny – Polish" lang="pl" hreflang="pl" data-title="Gwint metryczny" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9C%D0%B5%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0%D1%8F_%D1%80%D0%B5%D0%B7%D1%8C%D0%B1%D0%B0_ISO" title="Метрическая резьба ISO – Russian" lang="ru" hreflang="ru" data-title="Метрическая резьба ISO" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/ISO_%E0%B6%B8%E0%B7%99%E0%B6%A7%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%92%E0%B6%9A%E0%B7%8A_%E0%B6%89%E0%B7%83%E0%B7%8A%E0%B6%9A%E0%B7%94%E0%B6%BB%E0%B7%94%E0%B6%B4%E0%B7%8A%E0%B6%B4%E0%B7%94_%E0%B6%B4%E0%B7%9C%E0%B6%A7" title="ISO මෙට්‍රික් ඉස්කුරුප්පු පොට – Sinhala" lang="si" hreflang="si" data-title="ISO මෙට්‍රික් ඉස්කුරුප්පු පොට" data-language-autonym="සිංහල" data-language-local-name="Sinhala" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Metrick%C3%BD_z%C3%A1vit" title="Metrický závit – Slovak" lang="sk" hreflang="sk" data-title="Metrický závit" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Metri%C4%8Dki_navoj" title="Metrički navoj – Serbo-Croatian" lang="sh" 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<div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Hardware threading standard</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-Technical plainlinks metadata ambox ambox-style ambox-technical" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/40px-Edit-clear.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/60px-Edit-clear.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/f/f2/Edit-clear.svg/80px-Edit-clear.svg.png 2x" data-file-width="48" data-file-height="48" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>may be too technical for most readers to understand</b>.<span class="hide-when-compact"> Please <a class="external text" href="https://en.wikipedia.org/w/index.php?title=ISO_metric_screw_thread&amp;action=edit">help improve it</a> to <a href="/wiki/Wikipedia:Make_technical_articles_understandable" title="Wikipedia:Make technical articles understandable">make it understandable to non-experts</a>, without removing the technical details.</span> <span class="date-container"><i>(<span class="date">December 2020</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>The <b>ISO metric screw thread</b> is the most commonly used type of general-purpose <a href="/wiki/Screw_thread" title="Screw thread">screw thread</a> worldwide.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> They were one of the first <a href="/wiki/International_standard" title="International standard">international standards</a> agreed when the <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">International Organization for Standardization</a> (ISO) was set up in 1947.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (July 2009)">citation needed</span></a></i>&#93;</sup> </p><p>The "M" designation for metric <a href="/wiki/Screw" title="Screw">screws</a> indicates the <a href="/wiki/Real_versus_nominal_value" title="Real versus nominal value">nominal</a> outer <a href="/wiki/Diameter" title="Diameter">diameter</a> of the screw thread, in <a href="/wiki/Millimetres" class="mw-redirect" title="Millimetres">millimetres</a>. This is also referred to as the "major" diameter in the information below. It indicates the diameter of smooth-walled hole that a male thread (e.g. on a <a href="/wiki/Bolt_(fastener)" title="Bolt (fastener)">bolt</a>) will pass through easily to connect to an internally threaded component (e.g. a <a href="/wiki/Nut_(hardware)" title="Nut (hardware)">nut</a>) on the other side. For example, an M6 screw has a nominal outer diameter of 6&#160;millimetres and will therefore be a well-located, co-axial fit in a hole drilled to 6&#160;mm diameter. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Basic_profile">Basic profile</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=1" title="Edit section: Basic profile"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:ISO_and_UTS_Thread_Dimensions.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4b/ISO_and_UTS_Thread_Dimensions.svg/400px-ISO_and_UTS_Thread_Dimensions.svg.png" decoding="async" width="400" height="270" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4b/ISO_and_UTS_Thread_Dimensions.svg/600px-ISO_and_UTS_Thread_Dimensions.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4b/ISO_and_UTS_Thread_Dimensions.svg/800px-ISO_and_UTS_Thread_Dimensions.svg.png 2x" data-file-width="512" data-file-height="346" /></a><figcaption>Basic profile of all ISO metric screw threads, where the male part has the external thread</figcaption></figure> <p>The design principles of ISO general-purpose metric screw threads ("M" series threads) are defined in international standard ISO 68-1.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> Each thread is characterized by its <a href="/wiki/Screw_thread#Diameters" title="Screw thread">major diameter</a>, <i>D</i> (<i>D</i><sub>maj</sub> in the diagram), and its <a href="/wiki/Thread_pitch" class="mw-redirect" title="Thread pitch">pitch</a>, <i>P</i>. ISO metric threads consist of a symmetric V-shaped thread. In the plane of the thread axis, the flanks of the V have an angle of 60° to each other. The thread depth is 0.54125 × pitch. The outermost <style data-mw-deduplicate="TemplateStyles:r1154941027">.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}</style><span class="frac"><span class="num">1</span>&#8260;<span class="den">8</span></span> and the innermost <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">1</span>&#8260;<span class="den">4</span></span> of the height <i>H</i> of the V-shape are cut off from the profile. </p><p>The relationship between the height <i>H</i> and the pitch <i>P</i> is found using the following equation where <i>θ</i> is half the included angle of the thread, in this case 30°:<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle H={\frac {1}{\tan \theta }}\cdot {\frac {P}{2}}={\frac {\sqrt {3}}{2}}\cdot P\approx 0.8660\cdot P}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>H</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>1</mn> <mrow> <mi>tan</mi> <mo>&#x2061;<!-- ⁡ --></mo> <mi>&#x03B8;<!-- θ --></mi> </mrow> </mfrac> </mrow> <mo>&#x22C5;<!-- ⋅ --></mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>P</mi> <mn>2</mn> </mfrac> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msqrt> <mn>3</mn> </msqrt> <mn>2</mn> </mfrac> </mrow> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>P</mi> <mo>&#x2248;<!-- ≈ --></mo> <mn>0.8660</mn> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>P</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle H={\frac {1}{\tan \theta }}\cdot {\frac {P}{2}}={\frac {\sqrt {3}}{2}}\cdot P\approx 0.8660\cdot P}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/45dac2d8184ac749a4411f82da04dfa66384a6aa" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:38.536ex; height:6.009ex;" alt="{\displaystyle H={\frac {1}{\tan \theta }}\cdot {\frac {P}{2}}={\frac {\sqrt {3}}{2}}\cdot P\approx 0.8660\cdot P}"></span></dd></dl> <p>or </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle P=2\tan \theta \cdot H={\frac {2}{\sqrt {3}}}\cdot H\approx 1.1547\cdot H}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>P</mi> <mo>=</mo> <mn>2</mn> <mi>tan</mi> <mo>&#x2061;<!-- ⁡ --></mo> <mi>&#x03B8;<!-- θ --></mi> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>H</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>2</mn> <msqrt> <mn>3</mn> </msqrt> </mfrac> </mrow> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>H</mi> <mo>&#x2248;<!-- ≈ --></mo> <mn>1.1547</mn> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>H</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle P=2\tan \theta \cdot H={\frac {2}{\sqrt {3}}}\cdot H\approx 1.1547\cdot H}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8826b9adc1f1229d845e8bf3e4eb520f88f7cb65" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.838ex; width:39.049ex; height:6.176ex;" alt="{\displaystyle P=2\tan \theta \cdot H={\frac {2}{\sqrt {3}}}\cdot H\approx 1.1547\cdot H}"></span></dd></dl> <p>Because only <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">5</span>&#8260;<span class="den">8</span></span> of this height is cut, the difference between major and minor diameters is <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1154941027"><span class="frac"><span class="num">5</span>&#8260;<span class="den">4</span></span> × 0.8660 × <i>P</i> = 1.0825 × <i>P</i>, so the <a href="/wiki/Tap_drill" class="mw-redirect" title="Tap drill">tap drill</a> size can be approximated by subtracting the thread pitch from the major diameter. </p><p>In an external (male) thread (e.g. on a bolt), the major diameter <i>D</i><sub>maj</sub> and the minor diameter <i>D</i><sub>min</sub> define <i>maximum</i> dimensions of the thread. This means that the external thread must end flat at <i>D</i><sub>maj</sub>, but can be rounded out below the minor diameter <i>D</i><sub>min</sub>. Conversely, in an internal (female) thread (e.g. in a nut), the major and minor diameters are <i>minimum</i> dimensions; therefore the thread profile must end flat at <i>D</i><sub>min</sub> but may be rounded out beyond <i>D</i><sub>maj</sub>. In practice this means that one can measure the diameter over the threads of a bolt to find the nominal diameter <i>D</i><sub>maj</sub>, and the inner diameter of a nut is <i>D</i><sub>min</sub>. </p><p>The minor diameter <i>D</i><sub>min</sub> and effective pitch diameter <i>D</i><sub>p</sub> are derived from the major diameter and pitch as </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\begin{aligned}D_{\text{min}}&amp;=D_{\text{maj}}-2\cdot {\frac {5}{8}}\cdot H=D_{\text{maj}}-{\frac {5{\sqrt {3}}}{8}}\cdot P\approx D_{\text{maj}}-1.082532\cdot P\\[3pt]D_{\text{p}}&amp;=D_{\text{maj}}-2\cdot {\frac {3}{8}}\cdot H=D_{\text{maj}}-{\frac {3{\sqrt {3}}}{8}}\cdot P\approx D_{\text{maj}}-0.649519\cdot P\end{aligned}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mtable columnalign="right left right left right left right left right left right left" rowspacing="0.6em 0.3em" columnspacing="0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em" displaystyle="true"> <mtr> <mtd> <msub> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>min</mtext> </mrow> </msub> </mtd> <mtd> <mi></mi> <mo>=</mo> <msub> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>maj</mtext> </mrow> </msub> <mo>&#x2212;<!-- − --></mo> <mn>2</mn> <mo>&#x22C5;<!-- ⋅ --></mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>5</mn> <mn>8</mn> </mfrac> </mrow> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>H</mi> <mo>=</mo> <msub> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>maj</mtext> </mrow> </msub> <mo>&#x2212;<!-- − --></mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>5</mn> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <mn>3</mn> </msqrt> </mrow> </mrow> <mn>8</mn> </mfrac> </mrow> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>P</mi> <mo>&#x2248;<!-- ≈ --></mo> <msub> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>maj</mtext> </mrow> </msub> <mo>&#x2212;<!-- − --></mo> <mn>1.082532</mn> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>P</mi> </mtd> </mtr> <mtr> <mtd> <msub> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>p</mtext> </mrow> </msub> </mtd> <mtd> <mi></mi> <mo>=</mo> <msub> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>maj</mtext> </mrow> </msub> <mo>&#x2212;<!-- − --></mo> <mn>2</mn> <mo>&#x22C5;<!-- ⋅ --></mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>3</mn> <mn>8</mn> </mfrac> </mrow> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>H</mi> <mo>=</mo> <msub> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>maj</mtext> </mrow> </msub> <mo>&#x2212;<!-- − --></mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <mn>3</mn> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <mn>3</mn> </msqrt> </mrow> </mrow> <mn>8</mn> </mfrac> </mrow> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>P</mi> <mo>&#x2248;<!-- ≈ --></mo> <msub> <mi>D</mi> <mrow class="MJX-TeXAtom-ORD"> <mtext>maj</mtext> </mrow> </msub> <mo>&#x2212;<!-- − --></mo> <mn>0.649519</mn> <mo>&#x22C5;<!-- ⋅ --></mo> <mi>P</mi> </mtd> </mtr> </mtable> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\begin{aligned}D_{\text{min}}&amp;=D_{\text{maj}}-2\cdot {\frac {5}{8}}\cdot H=D_{\text{maj}}-{\frac {5{\sqrt {3}}}{8}}\cdot P\approx D_{\text{maj}}-1.082532\cdot P\\[3pt]D_{\text{p}}&amp;=D_{\text{maj}}-2\cdot {\frac {3}{8}}\cdot H=D_{\text{maj}}-{\frac {3{\sqrt {3}}}{8}}\cdot P\approx D_{\text{maj}}-0.649519\cdot P\end{aligned}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2f87c640bff0ce90f0946ca14968690c014c5e2e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -5.671ex; width:67.33ex; height:12.509ex;" alt="{\displaystyle {\begin{aligned}D_{\text{min}}&amp;=D_{\text{maj}}-2\cdot {\frac {5}{8}}\cdot H=D_{\text{maj}}-{\frac {5{\sqrt {3}}}{8}}\cdot P\approx D_{\text{maj}}-1.082532\cdot P\\[3pt]D_{\text{p}}&amp;=D_{\text{maj}}-2\cdot {\frac {3}{8}}\cdot H=D_{\text{maj}}-{\frac {3{\sqrt {3}}}{8}}\cdot P\approx D_{\text{maj}}-0.649519\cdot P\end{aligned}}}"></span></dd></dl> <p>Tables of the derived dimensions for screw diameters and pitches defined in ISO 261 are given in <a href="/wiki/ISO_724" class="mw-redirect" title="ISO 724">ISO 724</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Designation">Designation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=2" title="Edit section: Designation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A metric ISO screw thread is designated by the letter M followed by the value of the nominal diameter <i>D</i> (the maximum thread diameter) and the pitch <i>P</i>, both expressed in millimetres and separated by a dash or sometimes the multiplication sign, <i>×</i> (e.g. M8-1.25 or M8×1.25). If the pitch is the normally used "coarse" pitch listed in ISO 261 or ISO 262, it can be omitted (e.g. M8).<sup id="cite_ref-iso965-1_4-0" class="reference"><a href="#cite_note-iso965-1-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup><sup class="reference nowrap"><span title="Page: 17">&#58;&#8202;17&#8202;</span></sup> </p><p>The length of a <a href="/wiki/Screw#Machine_screw" title="Screw">machine screw</a> or bolt is indicated by an <i>×</i> and the length expressed in millimetres (e.g. M8-1.25×30 or M8×30).<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (May 2021)">citation needed</span></a></i>&#93;</sup> </p><p>Tolerance classes defined in <a href="/wiki/ISO_965" title="ISO 965">ISO 965-1</a> can be appended to these designations, if required (e.g. M500– 6g in external threads). External threads are designated by lowercase letter, g or h. Internal threads are designated by upper case letters, G or H.<sup id="cite_ref-iso965-1_4-1" class="reference"><a href="#cite_note-iso965-1-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup><sup class="reference nowrap"><span title="Page: 17">&#58;&#8202;17&#8202;</span></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Preferred_sizes"><span class="anchor" id="ISO_261"></span><span class="anchor" id="ISO_262"></span> Preferred sizes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=3" title="Edit section: Preferred sizes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Preferred_metric_sizes#ISO_261_and_262_fastener_diameters" title="Preferred metric sizes">Preferred metric sizes §&#160;ISO_261 and 262 fastener diameters</a></div> <p><b>ISO 261</b> specifies a detailed list of preferred combinations of outer diameter <i>D</i> and pitch <i>P</i> for ISO metric screw threads.<sup id="cite_ref-iso261_5-0" class="reference"><a href="#cite_note-iso261-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> <b>ISO 262</b> specifies a shorter list of thread dimensions – a subset of ISO 261.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> </p> <table class="wikitable"> <caption>ISO 262 selected sizes for screws, bolts and nuts </caption> <tbody><tr> <th rowspan="2">Nominal <br />diameter, <br /><i>D</i> (mm) </th> <th rowspan="2">Series </th> <th colspan="2"><a href="/wiki/Pitch_(screw)" class="mw-redirect" title="Pitch (screw)">Pitch</a>, <br /><i>P</i> (mm) </th> <td rowspan="21" scope="col" style="width:2em; border-top:0px; border-bottom:0px;"> </td> <th rowspan="2">Nominal <br />diameter, <br /><i>D</i> (mm) </th> <th rowspan="2">Series </th> <th colspan="2"><a href="/wiki/Pitch_(screw)" class="mw-redirect" title="Pitch (screw)">Pitch</a>, <br /><i>P</i> (mm) </th></tr> <tr> <th>Coarse</th> <th>Fine </th> <th>Coarse</th> <th>Fine </th></tr> <tr> <td>1</td> <td>R10</td> <td>0.25</td> <td>0.2 </td> <td colspan="4" data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">︙ </td></tr> <tr> <td>1.2</td> <td>R10</td> <td>0.25</td> <td>0.2 </td> <td>16</td> <td>R10</td> <td>2</td> <td>1.5 </td></tr> <tr> <td>1.4</td> <td>R20</td> <td>0.3</td> <td>0.2 </td> <td>18</td> <td>R20</td> <td>2.5</td> <td>2 or 1.5 </td></tr> <tr> <td>1.6</td> <td>R10</td> <td>0.35</td> <td>0.2 </td> <td>20</td> <td>R10</td> <td>2.5</td> <td>2 or 1.5 </td></tr> <tr> <td>1.8</td> <td>R20</td> <td>0.35</td> <td>0.2 </td> <td>22</td> <td>R20</td> <td>2.5</td> <td>2 or 1.5 </td></tr> <tr> <td>2</td> <td>R10</td> <td>0.4</td> <td>0.25 </td> <td>24</td> <td>R10</td> <td>3</td> <td>2 </td></tr> <tr> <td>2.5</td> <td>R10</td> <td>0.45</td> <td>0.35 </td> <td>27</td> <td>R20</td> <td>3</td> <td>2 </td></tr> <tr> <td>3</td> <td>R10</td> <td>0.5</td> <td>0.35 </td> <td>30</td> <td>R10</td> <td>3.5</td> <td>2 </td></tr> <tr> <td>3.5</td> <td>R20</td> <td>0.6</td> <td>0.35 </td> <td>33</td> <td>R20</td> <td>3.5</td> <td>2 </td></tr> <tr> <td>4</td> <td>R10</td> <td>0.7</td> <td>0.5 </td> <td>36</td> <td>R10</td> <td>4</td> <td>3 </td></tr> <tr> <td>5</td> <td>R10</td> <td>0.8</td> <td>0.5 </td> <td>39</td> <td>R20</td> <td>4</td> <td>3 </td></tr> <tr> <td>6</td> <td>R10</td> <td>1</td> <td>0.75 </td> <td>42</td> <td>R10</td> <td>4.5</td> <td>3 </td></tr> <tr> <td>7</td> <td>R20</td> <td>1</td> <td>0.75 </td> <td>45</td> <td>R20</td> <td>4.5</td> <td>3 </td></tr> <tr> <td>8</td> <td>R10</td> <td>1.25</td> <td>1 or 0.75 </td> <td>48</td> <td>R10</td> <td>5</td> <td>3 </td></tr> <tr> <td>10</td> <td>R10</td> <td>1.5</td> <td>1.25 or 1 </td> <td>52</td> <td>R20</td> <td>5</td> <td>4 </td></tr> <tr> <td>12</td> <td>R10</td> <td>1.75</td> <td>1.5 or 1.25 </td> <td>56</td> <td>R10</td> <td>5.5</td> <td>4 </td></tr> <tr> <td>14</td> <td>R20</td> <td>2</td> <td>1.5 </td> <td>60</td> <td>R20</td> <td>5.5</td> <td>4 </td></tr> <tr> <td colspan="4" data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">︙ </td> <td style="border-bottom:1px;">64</td> <td>R10</td> <td>6</td> <td>4 </td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-lower-alpha"> </div> <p>The thread values are derived from rounded <a href="/wiki/Renard_series" title="Renard series">Renard series</a>. They are defined in ISO 3, with "1st choice" sizes being from the Rˈˈ10 series and "2nd choice" and "3rd choice" sizes being the remaining values from the Rˈˈ20 series.<sup id="cite_ref-iso261_5-1" class="reference"><a href="#cite_note-iso261-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> </p><p>The <i>coarse</i> pitch is the commonly used default pitch for a given diameter. In addition, one or two smaller <i>fine</i> pitches are defined, for use in applications where the height of the normal <i>coarse</i> pitch would be unsuitable (e.g. threads in thin-walled pipes). The terms <i>coarse</i> and <i>fine</i> have (in this context) no relation to the manufacturing quality of the thread. </p><p>In addition to coarse and fine threads, there is another division of extra fine, or <i>superfine</i> threads, with a very fine pitch thread. Superfine pitch metric threads are occasionally used in automotive components, such as suspension struts, and are commonly used in the aviation manufacturing industry. This is because extra fine threads are more resistant to coming loose from vibrations.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> Fine and superfine threads also have a greater <a href="/wiki/Screw_thread#Minor_diameter" title="Screw thread">minor diameter</a> than coarse threads, which means the bolt or stud has a greater cross-sectional area (and therefore greater load-carrying capability) for the same nominal diameter. </p> <div class="mw-heading mw-heading2"><h2 id="Obsolete_pre_ISO_DIN_sizes">Obsolete pre ISO DIN sizes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=4" title="Edit section: Obsolete pre ISO DIN sizes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <caption>Obsolete DIN sizes<br />for historical purposes<br />DIN 13, Din 13-1 <sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> </caption> <tbody><tr> <th rowspan="2">Nominal <br />diameter, <br /><i>D</i> (mm) </th> <th rowspan="2">Series </th> <th colspan="2"><a href="/wiki/Pitch_(screw)" class="mw-redirect" title="Pitch (screw)">Pitch</a>, <br /><i>P</i> (mm) </th> <td rowspan="21" scope="col" style="width:2em; border-top:0px; border-bottom:0px;"> </td> <th rowspan="2">Nominal <br />diameter, <br /><i>D</i> (mm) </th> <th rowspan="2">Series </th> <th colspan="2"><a href="/wiki/Pitch_(screw)" class="mw-redirect" title="Pitch (screw)">Pitch</a>, <br /><i>P</i> (mm) </th></tr> <tr> <th>Coarse</th> <th>Fine </th> <th>Coarse</th> <th>Fine </th></tr> <tr> <td>1.</td> <td>-</td> <td>0.35</td> <td>- </td> <td colspan="4" data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">︙ </td></tr> <tr> <td>2.3</td> <td>-</td> <td>0.4</td> <td>- </td> <td>2.6</td> <td>-</td> <td>0.45</td> <td>- </td></tr> <tr> <td colspan="4" data-sort-value="" style="background: var(--background-color-interactive, #ececec); color: var(--color-base, inherit); vertical-align: middle; text-align: center;" class="table-na">︙ </td> <td style="border-bottom:1px;">5.5</td> <td>-</td> <td>6</td> <td>* </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Spanner_(wrench)_sizes"><span id="Spanner_.28wrench.29_sizes"></span>Spanner (wrench) sizes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=5" title="Edit section: Spanner (wrench) sizes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Below are some common spanner (<a href="/wiki/Wrench" title="Wrench">wrench</a>) sizes for metric screw threads. Hexagonal (generally abbreviated to "hex") head widths (width across flats, spanner size) are for <a href="/wiki/Deutsches_Institut_f%C3%BCr_Normung" title="Deutsches Institut für Normung">DIN</a> 934 hex nuts and hex head bolts. Other (usually smaller) sizes may occur to reduce weight or cost, including the small series flange bolts defined in ISO 4162 which typically have hexagonal head sizes corresponding to the smaller 1st choice thread size (eg. M6 small series flange bolts have 8mm hexagonal heads, as would normally be found on M5 bolts).<sup id="cite_ref-iso4162_10-0" class="reference"><a href="#cite_note-iso4162-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> </p> <table class="wikitable"> <tbody><tr> <th rowspan="3"><span typeof="mw:File"><a href="/wiki/File:Unified_Screw_Threads.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Unified_Screw_Threads.png/39px-Unified_Screw_Threads.png" decoding="async" width="39" height="70" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Unified_Screw_Threads.png/59px-Unified_Screw_Threads.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Unified_Screw_Threads.png/79px-Unified_Screw_Threads.png 2x" data-file-width="399" data-file-height="707" /></a></span><br />Thread </th> <th colspan="5" style="text-align: center;">Spanner (wrench) size (mm) </th></tr> <tr> <th colspan="2"><span typeof="mw:File"><a href="/wiki/File:Hex_cap_screw-no_markings.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Hex_cap_screw-no_markings.svg/60px-Hex_cap_screw-no_markings.svg.png" decoding="async" width="60" height="52" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Hex_cap_screw-no_markings.svg/90px-Hex_cap_screw-no_markings.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Hex_cap_screw-no_markings.svg/120px-Hex_cap_screw-no_markings.svg.png 2x" data-file-width="512" data-file-height="447" /></a></span><br />Hex nut, <br />and bolt </th> <th rowspan="2"><span typeof="mw:File"><a href="/wiki/File:Socket_head_cap_screw.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Socket_head_cap_screw.png/140px-Socket_head_cap_screw.png" decoding="async" width="140" height="48" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Socket_head_cap_screw.png/210px-Socket_head_cap_screw.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Socket_head_cap_screw.png/280px-Socket_head_cap_screw.png 2x" data-file-width="517" data-file-height="176" /></a></span><br />Socket-head cap screw </th> <th rowspan="2"><span typeof="mw:File"><a href="/wiki/File:Button_head_screw.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Button_head_screw.png/47px-Button_head_screw.png" decoding="async" width="47" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Button_head_screw.png/70px-Button_head_screw.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Button_head_screw.png/94px-Button_head_screw.png 2x" data-file-width="182" data-file-height="232" /></a></span><span typeof="mw:File"><a href="/wiki/File:Screw.PNG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Screw.PNG/52px-Screw.PNG" decoding="async" width="52" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/6/65/Screw.PNG 1.5x" data-file-width="68" data-file-height="78" /></a></span><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist" style="text-align:left;"><ul style="margin-left:1em;text-indent:-1em;"><li>Button-head cap screw</li><li>Counter-sunk <br />flat-head cap screw</li></ul></div> </th> <th rowspan="2"><span typeof="mw:File"><a href="/wiki/File:Grub_Screw.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Grub_Screw.svg/50px-Grub_Screw.svg.png" decoding="async" width="50" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Grub_Screw.svg/75px-Grub_Screw.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d1/Grub_Screw.svg/100px-Grub_Screw.svg.png 2x" data-file-width="250" data-file-height="300" /></a></span><br />Set, <br />or grub, <br />screw </th></tr> <tr> <th scope="col"><abbr title="ISO 4014-1999">ISO</abbr> </th> <th scope="col"><abbr title="DIN 934-1987">DIN</abbr> </th></tr> <tr style="text-align:center;"> <td>M1 </td> <td>- </td> <td>2.5 </td> <td>- </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M1.2 </td> <td>- </td> <td>3 </td> <td>- </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M1.4 </td> <td>- </td> <td>3 </td> <td>1.25 </td> <td>- </td> <td>0.7 </td></tr> <tr style="text-align:center;"> <td>M1.6 </td> <td colspan="2">3.2 </td> <td>1.5 </td> <td>0.9 </td> <td>0.7 </td></tr> <tr style="text-align:center;"> <td>M2 </td> <td colspan="2">4 </td> <td>1.5 </td> <td>1.25 </td> <td>0.9 </td></tr> <tr style="text-align:center;"> <td>M2.5 </td> <td colspan="2">5 </td> <td>2 </td> <td>1.5 </td> <td>1.3 </td></tr> <tr style="text-align:center;"> <td>M3 </td> <td colspan="2">5.5 </td> <td>2.5 </td> <td>2 </td> <td>1.5 </td></tr> <tr style="text-align:center;"> <td>M3.5 </td> <td colspan="2">6 </td> <td>- </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M4 </td> <td colspan="2">7 </td> <td>3 </td> <td>2.5 </td> <td>2 </td></tr> <tr style="text-align:center;"> <td>M5 </td> <td colspan="2">8 </td> <td>4 </td> <td>3 </td> <td>2.5 </td></tr> <tr style="text-align:center;"> <td>M6 </td> <td colspan="2">10 </td> <td>5 </td> <td>4 </td> <td>3 </td></tr> <tr style="text-align:center;"> <td>M7 </td> <td colspan="2">11 </td> <td>- </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M8 </td> <td colspan="2">13 </td> <td>6 </td> <td>5 </td> <td>4 </td></tr> <tr style="text-align:center;"> <td>M10 </td> <td>16 </td> <td>17 </td> <td>8 </td> <td>6 </td> <td>5 </td></tr> <tr style="text-align:center;"> <td>M12 </td> <td>18 </td> <td>19 </td> <td>10 </td> <td>8 </td> <td>6 </td></tr> <tr style="text-align:center;"> <td>M14 </td> <td>21 </td> <td>22 </td> <td>10 </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M16 </td> <td colspan="2">24 </td> <td>14 </td> <td>10 </td> <td>8 </td></tr> <tr style="text-align:center;"> <td>M18 </td> <td colspan="2">27 </td> <td>14 </td> <td>12 </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M20 </td> <td colspan="2">30 </td> <td>17 </td> <td>12 </td> <td>10 </td></tr> <tr style="text-align:center;"> <td>M22 </td> <td>34 </td> <td>32 </td> <td>17 </td> <td>14 </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M24 </td> <td colspan="2">36 </td> <td>19 </td> <td>14 </td> <td>12 </td></tr> <tr style="text-align:center;"> <td>M27 </td> <td colspan="2">41 </td> <td>19 </td> <td>17 </td> <td>14 </td></tr> <tr style="text-align:center;"> <td>M30 </td> <td colspan="2">46 </td> <td>22 </td> <td>17 </td> <td>14 </td></tr> <tr style="text-align:center;"> <td>M33 </td> <td colspan="2">50 </td> <td>24 </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M36 </td> <td colspan="2">55 </td> <td>27 </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M39 </td> <td colspan="2">60 </td> <td>- </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M42 </td> <td colspan="2">65 </td> <td>32 </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M45 </td> <td colspan="2">70 </td> <td>- </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M48 </td> <td colspan="2">75 </td> <td>36 </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M52 </td> <td colspan="2">80 </td> <td>36 </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M56 </td> <td colspan="2">85 </td> <td>41 </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M60 </td> <td colspan="2">90 </td> <td>- </td> <td>- </td> <td>- </td></tr> <tr style="text-align:center;"> <td>M64 </td> <td colspan="2">95 </td> <td>46 </td> <td>- </td> <td>- </td></tr></tbody></table><p><sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">&#91;<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="detailed table needs reference (August 2024)">citation needed</span></a></i>&#93;</sup> </p><div class="mw-heading mw-heading2"><h2 id="Standards">Standards</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=6" title="Edit section: Standards"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="International">International</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=7" title="Edit section: International"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>ISO 68-1: ISO general purpose screw threads — Basic profile — Metric screw threads.</li> <li>ISO 261: ISO general purpose metric screw threads — General plan.</li> <li>ISO 262: ISO general purpose metric screw threads — Selected sizes for <a href="/wiki/Screw#Differentiation_between_bolt_and_screw" title="Screw">screws, bolts</a> and <a href="/wiki/Nut_(hardware)#Standard_metric_hex_nuts_sizes" title="Nut (hardware)">nuts</a>.</li> <li><a href="/wiki/ISO_965" title="ISO 965">ISO 965</a>: ISO general purpose metric screw threads — <a href="/wiki/Tolerances" class="mw-redirect" title="Tolerances">Tolerances</a><sup id="cite_ref-iso965-1_4-2" class="reference"><a href="#cite_note-iso965-1-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> <ul><li>ISO 965-1: Principles and basic data</li> <li>ISO 965-2: Limits of sizes for general purpose external and internal screw threads.</li> <li>ISO 965-3: Deviations for constructional screw threads</li> <li>ISO 965-4: Limits of sizes for hot-dip galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G after galvanizing</li> <li>ISO 965-5: Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing</li></ul></li></ul> <div class="mw-heading mw-heading3"><h3 id="National">National</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=8" title="Edit section: National"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>BS 3643: ISO metric screw threads</li> <li><a rel="nofollow" class="external text" href="https://webstore.ansi.org/RecordDetail.aspx?sku=ASME+B4.2-1978+(R2009)">ANSI/ASME B1.13M</a>: <a rel="nofollow" class="external text" href="https://web.archive.org/web/20071231051947/http://catalog.asme.org/Codes/PrintBook/B113M_2005_Metric_Screw.cfm">Metric Screw Threads: M Profile</a></li> <li><a rel="nofollow" class="external text" href="https://webstore.ansi.org/RecordDetail.aspx?sku=ASME+B4.2-1978+(R2009)">ANSI/ASME B4.2-1978 (R2009)</a>: Preferred Metric Limits and Fits</li> <li><a rel="nofollow" class="external text" href="http://www.emuge-franken-bg.com/attachments/article/97/15%20Gewindetabellen.pdf">DIN13, page 519</a></li></ul> <div class="mw-heading mw-heading4"><h4 id="Derived_standards">Derived standards</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=9" title="Edit section: Derived standards"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Japan has a <a href="/wiki/Japanese_Industrial_Standards" title="Japanese Industrial Standards">JIS</a> metric screw thread standard that largely follows the ISO, but with some differences in pitch and head sizes. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=10" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 30em;"> <ul><li><a href="/wiki/ASTM_A325#Mechanical_properties,_metric" title="ASTM A325">ASTM A325M</a></li> <li><a href="/wiki/ASTM_F568M" title="ASTM F568M">ASTM F568M</a></li> <li><a href="/wiki/British_Association_screw_threads" title="British Association screw threads">British Association screw threads</a> (BA)</li> <li><a href="/wiki/British_Standard_Cycle" title="British Standard Cycle">British Standard Cycle</a> (BSC)</li> <li><a href="/wiki/British_standard_fine_thread" class="mw-redirect" title="British standard fine thread">British standard fine thread</a> (BSF)</li> <li><a href="/wiki/British_standard_pipe_thread" class="mw-redirect" title="British standard pipe thread">British standard pipe thread</a> (BSP)</li> <li><a href="/wiki/British_Standard_Whitworth" title="British Standard Whitworth">British Standard Whitworth</a> (BSW) – a British thread standard with 55° profile.</li> <li><a href="/wiki/Buttress_thread" title="Buttress thread">Buttress thread</a></li> <li><a href="/wiki/Engineering_tolerance" title="Engineering tolerance">Engineering tolerance</a></li> <li><a href="/wiki/Garden_hose_thread" class="mw-redirect" title="Garden hose thread">Garden hose thread</a></li> <li><a href="/wiki/List_of_drill_and_tap_sizes" title="List of drill and tap sizes">List of drill and tap sizes</a></li> <li><a href="/wiki/National_pipe_thread" title="National pipe thread">National pipe thread</a> (NPT)</li> <li><a href="/wiki/National_Standard_Thread" class="mw-redirect" title="National Standard Thread">National thread</a></li> <li><a href="/wiki/Nominal_size" class="mw-redirect" title="Nominal size">Nominal size</a></li> <li><i><a href="/wiki/Panzergewinde" title="Panzergewinde">Panzergewinde</a></i></li> <li><a href="/wiki/Filter_thread" class="mw-redirect" title="Filter thread">Photographic Filter thread</a></li> <li><a href="/wiki/Preferred_metric_sizes" title="Preferred metric sizes">Preferred metric sizes</a></li> <li><a href="/wiki/Screw_thread" title="Screw thread">Screw thread</a></li> <li><a href="/wiki/Square_thread_form" title="Square thread form">Square thread form</a></li> <li><a href="/wiki/Thread_angle" title="Thread angle">Thread angle</a></li> <li><a href="/wiki/Trapezoidal_thread_forms" class="mw-redirect" title="Trapezoidal thread forms">Trapezoidal thread forms</a></li> <li><a href="/wiki/United_States_Standard_thread" title="United States Standard thread">United States Standard thread</a></li> <li><a href="/wiki/Unified_Thread_Standard" title="Unified Thread Standard">Unified Thread Standard</a> (UTS, UNC, UNF, UNEF and UNS) – a US/Canadian/British thread standard that uses the same 60° profile as metric threads, but an inch-based set of diameter/pitch combinations.</li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=11" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://isotc.iso.org/livelink/livelink/fetch/2000/2122/687806/ISO_TC_001__Screws_.pdf?nodeid=4938938&amp;vernum=0">ISO/TC/ 1 Business Plan</a>, 2007-03-05, Version 1.3. Table 3: The market share of each screw thread, p. 7.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation book cs1"><a rel="nofollow" class="external text" href="http://www.iso.org/iso/catalogue_detail.htm?csnumber=3707"><i>ISO 68-1:1998 ISO general purpose screw threads – Basic profile – Part 1: Metric screw threads</i></a>. International Organization for Standardization.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=ISO+68-1%3A1998+ISO+general+purpose+screw+threads+%E2%80%93+Basic+profile+%E2%80%93+Part+1%3A+Metric+screw+threads&amp;rft.pub=International+Organization+for+Standardization&amp;rft_id=http%3A%2F%2Fwww.iso.org%2Fiso%2Fcatalogue_detail.htm%3Fcsnumber%3D3707&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AISO+metric+screw+thread" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><a href="#CITEREFObergJonesHortonRyffel2000">Oberg et al. 2000</a>, p.&#160;1706</span> </li> <li id="cite_note-iso965-1-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-iso965-1_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-iso965-1_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-iso965-1_4-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="https://www.iso.org/standard/57778.html"><i>ISO 965-1:2013 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data</i></a>. International Organization for Standardization. 15 September 2013.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=ISO+965-1%3A2013+ISO+general+purpose+metric+screw+threads+%E2%80%94+Tolerances+%E2%80%94+Part+1%3A+Principles+and+basic+data&amp;rft.pub=International+Organization+for+Standardization&amp;rft.date=2013-09-15&amp;rft_id=https%3A%2F%2Fwww.iso.org%2Fstandard%2F57778.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AISO+metric+screw+thread" class="Z3988"></span></span> </li> <li id="cite_note-iso261-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-iso261_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-iso261_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=4165"><i>ISO 261:1998 ISO general purpose metric screw threads – General plan</i></a>. International Organization for Standardization. 17 December 1998.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=ISO+261%3A1998+ISO+general+purpose+metric+screw+threads+%E2%80%93+General+plan&amp;rft.pub=International+Organization+for+Standardization&amp;rft.date=1998-12-17&amp;rft_id=http%3A%2F%2Fwww.iso.org%2Fiso%2Fiso_catalogue%2Fcatalogue_tc%2Fcatalogue_detail.htm%3Fcsnumber%3D4165&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AISO+metric+screw+thread" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.emuge-franken-bg.com/attachments/article/97/15%20Gewindetabellen.pdf">ISO &amp; DIN13</a></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=4167"><i>ISO 262:1998 ISO general purpose metric screw threads – Selected sizes for screws, bolts and nuts</i></a>. International Organization for Standardization. 17 December 1998.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=ISO+262%3A1998+ISO+general+purpose+metric+screw+threads+%E2%80%93+Selected+sizes+for+screws%2C+bolts+and+nuts&amp;rft.pub=International+Organization+for+Standardization&amp;rft.date=1998-12-17&amp;rft_id=http%3A%2F%2Fwww.iso.org%2Fiso%2Fiso_catalogue%2Fcatalogue_tc%2Fcatalogue_detail.htm%3Fcsnumber%3D4167&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AISO+metric+screw+thread" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20170314024016/https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19950018571.pdf">"Final report"</a> <span class="cs1-format">(PDF)</span>. <i>ntrs.nasa.gov</i>. Archived from <a rel="nofollow" class="external text" href="https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19950018571.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 14 March 2017<span class="reference-accessdate">. Retrieved <span class="nowrap">7 July</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=ntrs.nasa.gov&amp;rft.atitle=Final+report&amp;rft_id=https%3A%2F%2Fntrs.nasa.gov%2Farchive%2Fnasa%2Fcasi.ntrs.nasa.gov%2F19950018571.pdf&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AISO+metric+screw+thread" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.emuge-franken-bg.com/attachments/article/97/15%20Gewindetabellen.pdf">Gewindetabellen 15, page 519</a></span> </li> <li id="cite_note-iso4162-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-iso4162_10-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.iso.org/standard/56451.html">"ISO 4162:2012"</a>. <a href="/wiki/International_Standards_Organisation" class="mw-redirect" title="International Standards Organisation">International Standards Organisation</a><span class="reference-accessdate">. Retrieved <span class="nowrap">23 December</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=ISO+4162%3A2012&amp;rft.pub=International+Standards+Organisation&amp;rft_id=https%3A%2F%2Fwww.iso.org%2Fstandard%2F56451.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AISO+metric+screw+thread" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading3"><h3 id="Bibliography">Bibliography</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=12" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFObergJonesHortonRyffel2000" class="citation cs2">Oberg, Erik; Jones, Franklin D.; Horton, Holbrook L.; Ryffel, Henry H. (2000), <i><a href="/wiki/Machinery%27s_Handbook" title="Machinery&#39;s Handbook">Machinery's Handbook</a></i> (26th&#160;ed.), New York: Industrial Press Inc., <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&#160;<a href="/wiki/Special:BookSources/0-8311-2635-3" title="Special:BookSources/0-8311-2635-3"><bdi>0-8311-2635-3</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Machinery%27s+Handbook&amp;rft.place=New+York&amp;rft.edition=26th&amp;rft.pub=Industrial+Press+Inc.&amp;rft.date=2000&amp;rft.isbn=0-8311-2635-3&amp;rft.aulast=Oberg&amp;rft.aufirst=Erik&amp;rft.au=Jones%2C+Franklin+D.&amp;rft.au=Horton%2C+Holbrook+L.&amp;rft.au=Ryffel%2C+Henry+H.&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AISO+metric+screw+thread" class="Z3988"></span></li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=ISO_metric_screw_thread&amp;action=edit&amp;section=13" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.emuge-franken-bg.com/attachments/article/97/15%20Gewindetabellen.pdf">Diagrams and tables of many screwthread series. In German</a></li> <li><a rel="nofollow" class="external text" href="http://www.sinofastener.com/uppics/201010161010087778.pdf">DIN 931: M1,6 to M39 Hexagon head bolts (Product grades A and B)</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20221210050204/http://www.sinofastener.com/uppics/201010161010087778.pdf">Archived</a> 10 December 2022 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>(1987)</li> <li><a href="//archive.org/details/gov.in.is.9519.2005" class="extiw" title="iarchive:gov.in.is.9519.2005">IS 9519: Fasteners - Hexagon products - Width across flats</a>, Indian standard (2013)</li> <li><a rel="nofollow" class="external text" href="https://www.threadspecification.com/m/">Metric screw thread profile, dimensions and tolerances</a></li> <li><a rel="nofollow" class="external text" href="https://www.metricbolt.com/metric-bolt-sizes/">Metric bolt sizes, threads and materials</a></li></ul> <p><br /> </p> <div 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title="International Organization for Standardization">ISO</a> standards <span class="nobold">by standard number</span></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div>List of <a href="/wiki/List_of_ISO_standards" title="List of ISO standards">ISO standards</a> – <a href="/wiki/List_of_ISO_romanizations" title="List of ISO romanizations">ISO romanizations</a> – <a href="/wiki/List_of_IEC_standards" title="List of IEC standards">IEC standards</a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">1–9999</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ISO_1" title="ISO 1">1</a></li> <li><a href="/wiki/ISO_2" title="ISO 2">2</a></li> <li><a href="/wiki/Renard_series" title="Renard series">3</a></li> <li><a href="/wiki/ISO_4" title="ISO 4">4</a></li> <li><a href="/wiki/Film_speed" title="Film speed">6</a></li> <li><a href="/wiki/British_Standard_Pipe" title="British Standard Pipe">7</a></li> <li><a href="/wiki/ISO_9" title="ISO 9">9</a></li> <li><a href="/wiki/A440_(pitch_standard)" title="A440 (pitch standard)">16</a></li> <li><a href="/wiki/Renard_series" title="Renard series">17</a></li> <li><a href="/wiki/ISO_31" title="ISO 31">31</a> <ul><li><a href="/wiki/ISO_31-0" title="ISO 31-0">-0</a></li> <li><a href="/wiki/ISO_31-1" title="ISO 31-1">-1</a></li> <li><a href="/wiki/ISO_31-3" title="ISO 31-3">-3</a></li> <li><a href="/wiki/ISO_31-4" title="ISO 31-4">-4</a></li> <li><a href="/wiki/ISO_31-5" title="ISO 31-5">-5</a></li> <li><a href="/wiki/ISO_31-6" title="ISO 31-6">-6</a></li> <li><a href="/wiki/ISO_31-7" title="ISO 31-7">-7</a></li> <li><a href="/wiki/ISO_31-8" title="ISO 31-8">-8</a></li> <li><a href="/wiki/ISO_31-9" class="mw-redirect" title="ISO 31-9">-9</a></li> <li><a href="/wiki/ISO_31-10" title="ISO 31-10">-10</a></li> <li><a href="/wiki/ISO_31-11" title="ISO 31-11">-11</a></li> <li><a href="/wiki/ISO_31-12" class="mw-redirect" title="ISO 31-12">-12</a></li> <li><a href="/wiki/ISO_31-13" class="mw-redirect" title="ISO 31-13">-13</a></li></ul></li> <li><a class="mw-selflink selflink">68-1</a></li> <li><a href="/wiki/ISO_128" title="ISO 128">128</a></li> <li><a href="/wiki/ISO_216" title="ISO 216">216</a></li> <li><a href="/wiki/ISO_217" title="ISO 217">217</a></li> <li><a href="/wiki/Equal-loudness_contour" title="Equal-loudness contour">226</a></li> <li><a href="/wiki/British_Standard_Pipe" title="British Standard Pipe">228</a></li> <li><a href="/wiki/ISO_233" title="ISO 233">233</a></li> <li><a href="/wiki/ISO_259" title="ISO 259">259</a></li> <li><a class="mw-selflink selflink">261</a></li> <li><a class="mw-selflink selflink">262</a></li> <li><a href="/wiki/Kappa_number" title="Kappa number">302</a></li> <li><a href="/wiki/Vicat_softening_point" title="Vicat softening point">306</a></li> <li><a href="/wiki/Hazard_symbol#Ionizing_radiation_symbol" title="Hazard symbol">361</a></li> <li><a href="/wiki/Power_take-off" title="Power take-off">500</a></li> <li><a href="/wiki/Hot_shoe" title="Hot shoe">518</a></li> <li><a href="/wiki/Prontor-Compur" title="Prontor-Compur">519</a></li> <li><a href="/wiki/ISO_639" title="ISO 639">639</a> <ul><li><a href="/wiki/ISO_639-1" title="ISO 639-1">-1</a></li> <li><a href="/wiki/ISO_639-2" title="ISO 639-2">-2</a></li> <li><a href="/wiki/ISO_639-3" title="ISO 639-3">-3</a></li> <li><a href="/wiki/ISO_639-5" title="ISO 639-5">-5</a></li> <li><a href="/wiki/ISO_639-6" title="ISO 639-6">-6</a></li></ul></li> <li><a href="/wiki/ISO/IEC_646" title="ISO/IEC 646">646</a></li> <li><a href="/wiki/ISO_657" title="ISO 657">657</a></li> <li><a href="/wiki/ISO_668" title="ISO 668">668</a></li> <li><a href="/wiki/ISO_690" title="ISO 690">690</a></li> <li><a href="/wiki/ISO_704" title="ISO 704">704</a></li> <li><a href="/wiki/ISO_732" title="ISO 732">732</a></li> <li><a href="/wiki/Antimagnetic_watch" title="Antimagnetic watch">764</a></li> <li><a href="/wiki/Hole_punch" title="Hole punch">838</a></li> <li><a href="/wiki/ISO_843" title="ISO 843">843</a></li> <li><a href="/wiki/ISO_860" title="ISO 860">860</a></li> <li><a href="/wiki/ISO_898" title="ISO 898">898</a></li> <li><a href="/wiki/ISO_965" title="ISO 965">965</a></li> <li><a href="/wiki/ISO_999" title="ISO 999">999</a></li> <li><a href="/wiki/ISO_1000" title="ISO 1000">1000</a></li> <li><a href="/wiki/Magnetic_ink_character_recognition" title="Magnetic ink character recognition">1004</a></li> <li><a href="/wiki/135_film" title="135 film">1007</a></li> <li><a href="/wiki/OCR-A" title="OCR-A">1073-1</a></li> <li><a href="/wiki/OCR-B" title="OCR-B">1073-2</a></li> <li><a href="/wiki/Longitudinal_redundancy_check" title="Longitudinal redundancy check">1155</a></li> <li><a href="/wiki/Shock-resistant_watch#ISO_1413_shock-resistant_standard" title="Shock-resistant watch">1413</a></li> <li><a href="/wiki/ALGOL_60" title="ALGOL 60">1538</a></li> <li><a href="/wiki/ISO_1629" title="ISO 1629">1629</a></li> <li><a href="/wiki/ISO_1745" title="ISO 1745">1745</a></li> <li><a href="/wiki/COBOL" title="COBOL">1989</a></li> <li><a href="/wiki/ISO_2014" title="ISO 2014">2014</a></li> <li><a href="/wiki/ISO_2015" title="ISO 2015">2015</a></li> <li><a href="/wiki/ISO/IEC_2022" title="ISO/IEC 2022">2022</a></li> <li><a href="/wiki/ISO_2033" title="ISO 2033">2033</a></li> <li><a href="/wiki/ISO_2047" title="ISO 2047">2047</a></li> <li><a href="/wiki/ISBN" title="ISBN">2108</a></li> <li><a href="/wiki/ISO_2145" title="ISO 2145">2145</a></li> <li><a href="/wiki/ISO_2146" title="ISO 2146">2146</a></li> <li><a href="/wiki/Film_speed" title="Film speed">2240</a></li> <li><a href="/wiki/Water_Resistant_mark" title="Water Resistant mark">2281</a></li> <li><a href="/wiki/International_Standard_Atmosphere" title="International Standard Atmosphere">2533</a></li> <li><a href="/wiki/ISO_2709" title="ISO 2709">2709</a></li> <li><a href="/wiki/ISO_2711" title="ISO 2711">2711</a></li> <li><a href="/wiki/Film_speed" title="Film speed">2720</a></li> <li><a href="/wiki/ISO_2788" title="ISO 2788">2788</a></li> <li><a href="/wiki/ISO_2848" title="ISO 2848">2848</a></li> <li><a href="/wiki/ISO_2852" title="ISO 2852">2852</a></li> <li><a href="/wiki/ISO_2921" title="ISO 2921">2921</a></li> <li><a href="/wiki/126_film" title="126 film">3029</a></li> <li><a href="/wiki/ISO_3103" title="ISO 3103">3103</a></li> <li><a href="/wiki/ISO_3166" title="ISO 3166">3166</a> <ul><li><a href="/wiki/ISO_3166-1" title="ISO 3166-1">-1</a></li> <li><a href="/wiki/ISO_3166-2" title="ISO 3166-2">-2</a></li> <li><a href="/wiki/ISO_3166-3" title="ISO 3166-3">-3</a></li></ul></li> <li><a href="/wiki/International_Standard_Serial_Number" class="mw-redirect" title="International Standard Serial Number">3297</a></li> <li><a href="/wiki/ISO_3307" title="ISO 3307">3307</a></li> <li><a href="/wiki/O-ring" title="O-ring">3601</a></li> <li><a href="/wiki/Kunrei-shiki_romanization" title="Kunrei-shiki romanization">3602</a></li> <li><a href="/wiki/ISO_3864" title="ISO 3864">3864</a></li> <li><a href="/wiki/International_Standard_Recording_Code" title="International Standard Recording Code">3901</a></li> <li><a href="/wiki/FDI_World_Dental_Federation_notation" title="FDI World Dental Federation notation">3950</a></li> <li><a href="/wiki/ISO_3977" title="ISO 3977">3977</a></li> <li><a href="/wiki/ISO_4031" title="ISO 4031">4031</a></li> <li><a href="/wiki/ISO_4157" title="ISO 4157">4157</a></li> <li><a href="/wiki/ISO_4165" title="ISO 4165">4165</a></li> <li><a href="/wiki/ISO_4217" title="ISO 4217">4217</a></li> <li><a href="/wiki/ISO/IEC_4909" title="ISO/IEC 4909">4909</a></li> <li><a href="/wiki/ISO/IEC_5218" title="ISO/IEC 5218">5218</a></li> <li><a href="/wiki/ISO_5426" title="ISO 5426">5426</a></li> <li><a href="/wiki/ISO_5427" title="ISO 5427">5427</a></li> <li><a href="/wiki/ISO_5428" title="ISO 5428">5428</a></li> <li><a href="/wiki/Accuracy_and_precision" title="Accuracy and precision">5725</a></li> <li><a href="/wiki/ISO_5775" title="ISO 5775">5775</a></li> <li><a href="/wiki/ISO_5776" title="ISO 5776">5776</a></li> <li><a href="/wiki/Film_speed" title="Film speed">5800</a></li> <li><a href="/wiki/Flowchart" title="Flowchart">5807</a></li> <li><a href="/wiki/ISO_5964" title="ISO 5964">5964</a></li> <li><a href="/wiki/International_Securities_Identification_Number" title="International Securities Identification Number">6166</a></li> <li><a href="/wiki/ISO_6344" title="ISO 6344">6344</a></li> <li><a href="/wiki/ISO_6346" title="ISO 6346">6346</a></li> <li><a href="/wiki/Minimal_BASIC" title="Minimal BASIC">6373</a></li> <li><a href="/wiki/ISO_6385" title="ISO 6385">6385</a></li> <li><a href="/wiki/Water_Resistant_mark" title="Water Resistant mark">6425</a></li> <li><a href="/wiki/ANSI_escape_code" title="ANSI escape code">6429</a></li> <li><a href="/wiki/ISO_6438" title="ISO 6438">6438</a></li> <li><a href="/wiki/ISO/IEC_6523" title="ISO/IEC 6523">6523</a></li> <li><a href="/wiki/ISO_6709" title="ISO 6709">6709</a></li> <li><a href="/wiki/ISO_6943" title="ISO 6943">6943</a></li> <li><a href="/wiki/ISO_7001" title="ISO 7001">7001</a></li> <li><a href="/wiki/ISO_7002" title="ISO 7002">7002</a></li> <li><a href="/wiki/ISO_7010" title="ISO 7010">7010</a></li> <li><a href="/wiki/ISO_7027" title="ISO 7027">7027</a></li> <li><a href="/wiki/ISO/IEC_7064" title="ISO/IEC 7064">7064</a></li> <li><a href="/wiki/Pinyin" title="Pinyin">7098</a></li> <li><a href="/wiki/Pascal_(programming_language)" title="Pascal (programming language)">7185</a></li> <li><a href="/wiki/ISO_7200" title="ISO 7200">7200</a></li> <li><a href="/wiki/OSI_model" title="OSI model">7498</a> <ul><li><a href="/wiki/OSI_model" title="OSI model">-1</a></li></ul></li> <li><a href="/wiki/ISO_7637" title="ISO 7637">7637</a></li> <li><a href="/wiki/ISO_7736" title="ISO 7736">7736</a></li> <li><a href="/wiki/ISO/IEC_7810" title="ISO/IEC 7810">7810</a></li> <li><a href="/wiki/ISO/IEC_7811" title="ISO/IEC 7811">7811</a></li> <li><a href="/wiki/ISO/IEC_7812" title="ISO/IEC 7812">7812</a></li> <li><a href="/wiki/ISO/IEC_7813" title="ISO/IEC 7813">7813</a></li> <li><a href="/wiki/ISO/IEC_7816" title="ISO/IEC 7816">7816</a></li> <li><a href="/wiki/Graphical_Kernel_System" title="Graphical Kernel System">7942</a></li> <li><a href="/wiki/ISO_8000" title="ISO 8000">8000</a></li> <li><a href="/wiki/On-board_diagnostics" title="On-board diagnostics">8093</a></li> <li><a href="/wiki/ISO_8178" title="ISO 8178">8178</a></li> <li><a href="/wiki/Fuel_oil" title="Fuel oil">8217</a></li> <li><a href="/wiki/ISO_8373" class="mw-redirect" title="ISO 8373">8373</a></li> <li><a href="/wiki/ISO_8501-1" title="ISO 8501-1">8501-1</a></li> <li><a href="/wiki/FTAM" title="FTAM">8571</a></li> <li><a href="/wiki/ISO_8583" title="ISO 8583">8583</a></li> <li><a href="/wiki/ISO_8601" title="ISO 8601">8601</a></li> <li><a href="/wiki/Open_Document_Architecture" title="Open Document Architecture">8613</a></li> <li><a href="/wiki/Computer_Graphics_Metafile" title="Computer Graphics Metafile">8632</a></li> <li><a href="/wiki/Graphical_Kernel_System" title="Graphical Kernel System">8651</a></li> <li><a href="/wiki/ISO/IEC_8652" title="ISO/IEC 8652">8652</a></li> <li><a href="/wiki/ISO_8691" title="ISO 8691">8691</a></li> <li><a href="/wiki/Graphical_Kernel_System" title="Graphical Kernel System">8805/8806</a></li> <li><a href="/wiki/Language_Of_Temporal_Ordering_Specification" class="mw-redirect" title="Language Of Temporal Ordering Specification">8807</a></li> <li><a href="/wiki/Fuse_(automotive)" class="mw-redirect" title="Fuse (automotive)">8820-5</a></li> <li><a href="/wiki/ISO/IEC_8859" title="ISO/IEC 8859">8859</a> <ul><li><a href="/wiki/ISO/IEC_8859-1" title="ISO/IEC 8859-1">-1</a></li> <li><a href="/wiki/ISO/IEC_8859-2" title="ISO/IEC 8859-2">-2</a></li> <li><a href="/wiki/ISO/IEC_8859-3" title="ISO/IEC 8859-3">-3</a></li> <li><a href="/wiki/ISO/IEC_8859-4" title="ISO/IEC 8859-4">-4</a></li> <li><a href="/wiki/ISO/IEC_8859-5" title="ISO/IEC 8859-5">-5</a></li> <li><a href="/wiki/ISO/IEC_8859-6" title="ISO/IEC 8859-6">-6</a></li> <li><a href="/wiki/ISO/IEC_8859-7" title="ISO/IEC 8859-7">-7</a></li> <li><a href="/wiki/ISO/IEC_8859-8" title="ISO/IEC 8859-8">-8</a></li> <li><a href="/wiki/ISO-8859-8-I" title="ISO-8859-8-I">-8-I</a></li> <li><a href="/wiki/ISO/IEC_8859-9" title="ISO/IEC 8859-9">-9</a></li> <li><a href="/wiki/ISO/IEC_8859-10" title="ISO/IEC 8859-10">-10</a></li> <li><a href="/wiki/ISO/IEC_8859-11" title="ISO/IEC 8859-11">-11</a></li> <li><a href="/wiki/ISO/IEC_8859-12" class="mw-redirect" title="ISO/IEC 8859-12">-12</a></li> <li><a href="/wiki/ISO/IEC_8859-13" title="ISO/IEC 8859-13">-13</a></li> <li><a href="/wiki/ISO/IEC_8859-14" title="ISO/IEC 8859-14">-14</a></li> <li><a href="/wiki/ISO/IEC_8859-15" title="ISO/IEC 8859-15">-15</a></li> <li><a href="/wiki/ISO/IEC_8859-16" title="ISO/IEC 8859-16">-16</a></li></ul></li> <li><a href="/wiki/Standard_Generalized_Markup_Language" title="Standard Generalized Markup Language">8879</a></li> <li><a href="/wiki/ISO_9000" class="mw-redirect" title="ISO 9000">9000/9001</a></li> <li><a href="/wiki/ASMO_449" title="ASMO 449">9036</a></li> <li><a href="/wiki/SQL" title="SQL">9075</a></li> <li><a href="/wiki/ISO/IEC_9126" title="ISO/IEC 9126">9126</a></li> <li><a href="/wiki/On-board_diagnostics" title="On-board diagnostics">9141</a></li> <li><a href="/wiki/Salt_spray_test" title="Salt spray test">9227</a></li> <li><a href="/wiki/ISO_9241" title="ISO 9241">9241</a></li> <li><a href="/wiki/File_Allocation_Table" title="File Allocation Table">9293</a></li> <li><a href="/wiki/Fiber_Distributed_Data_Interface" title="Fiber Distributed Data Interface">9314</a></li> <li><a href="/wiki/ISO_9362" title="ISO 9362">9362</a></li> <li><a href="/wiki/Shoe_size" title="Shoe size">9407</a></li> <li><a href="/wiki/CHILL" title="CHILL">9496</a></li> <li><a href="/wiki/Manufacturing_Message_Specification" title="Manufacturing Message Specification">9506</a></li> <li><a href="/wiki/ISO/IEC_9529" title="ISO/IEC 9529">9529</a></li> <li><a href="/wiki/ISO_9564" title="ISO 9564">9564</a></li> <li><a href="/wiki/PHIGS" title="PHIGS">9592/9593</a></li> <li><a href="/wiki/X.500" title="X.500">9594</a></li> <li><a href="/wiki/ISO_9660" title="ISO 9660">9660</a></li> <li><a href="/wiki/ISO/IEC_9797-1" title="ISO/IEC 9797-1">9797-1</a></li> <li><a href="/wiki/ISO_9897" title="ISO 9897">9897</a></li> <li><a href="/wiki/ANSI_C" title="ANSI C">9899</a></li> <li><a href="/wiki/POSIX" title="POSIX">9945</a></li> <li><a href="/wiki/Romanization_of_Georgian" title="Romanization of Georgian">9984</a></li> <li><a href="/wiki/Romanization_of_Armenian" title="Romanization of Armenian">9985</a></li> <li><a href="/wiki/ISO/IEC_9995" title="ISO/IEC 9995">9995</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">10000–19999</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ISO_10006" title="ISO 10006">10006</a></li> <li><a href="/wiki/ISO_10007" title="ISO 10007">10007</a></li> <li><a href="/wiki/ISO/IEC_10116" title="ISO/IEC 10116">10116</a></li> <li><a href="/wiki/Whirlpool_(hash_function)" title="Whirlpool (hash function)">10118-3</a></li> <li><a href="/wiki/ISO_10160" title="ISO 10160">10160</a></li> <li><a href="/wiki/ISO_10161" title="ISO 10161">10161</a></li> <li><a href="/wiki/Guidelines_for_the_Definition_of_Managed_Objects" title="Guidelines for the Definition of Managed Objects">10165</a></li> <li><a href="/wiki/Document_Style_Semantics_and_Specification_Language" title="Document Style Semantics and Specification Language">10179</a></li> <li><a href="/wiki/Pascal_(programming_language)#ISO/IEC_10206:1990_Extended_Pascal" title="Pascal (programming language)">10206</a></li> <li><a href="/wiki/ISO_10218" title="ISO 10218">10218</a></li> <li><a href="/wiki/Full_BASIC" title="Full BASIC">10279</a></li> <li><a href="/wiki/ISO_10303" title="ISO 10303">10303</a> <ul><li><a href="/wiki/EXPRESS_(data_modeling_language)" title="EXPRESS (data modeling language)">-11</a></li> <li><a href="/wiki/ISO_10303-21" title="ISO 10303-21">-21</a></li> <li><a href="/wiki/ISO_10303-22" title="ISO 10303-22">-22</a></li> <li><a href="/wiki/ISO_10303-28" title="ISO 10303-28">-28</a></li> <li><a href="/wiki/STEP-NC" title="STEP-NC">-238</a></li></ul></li> <li><a href="/wiki/Market_Identifier_Code" title="Market Identifier Code">10383</a></li> <li><a href="/wiki/ArmSCII" title="ArmSCII">10585</a></li> <li><a href="/wiki/IS-IS" title="IS-IS">10589</a></li> <li><a href="/wiki/ISO_10628" title="ISO 10628">10628</a></li> <li><a href="/wiki/Universal_Coded_Character_Set" title="Universal Coded Character Set">10646</a></li> <li><a href="/wiki/Torx" title="Torx">10664</a></li> <li><a href="/wiki/RM-ODP" title="RM-ODP">10746</a></li> <li><a href="/wiki/Multibus" title="Multibus">10861</a></li> <li><a href="/wiki/International_Standard_Music_Number" title="International Standard Music Number">10957</a></li> <li><a href="/wiki/ISO_10962" title="ISO 10962">10962</a></li> <li><a href="/wiki/ISO/IEC_10967" title="ISO/IEC 10967">10967</a></li> <li><a href="/wiki/ISO/IEEE_11073" title="ISO/IEEE 11073">11073</a></li> <li><a href="/wiki/ISO_11170" title="ISO 11170">11170</a></li> <li><a href="/wiki/MPEG-1" title="MPEG-1">11172</a></li> <li><a href="/wiki/ISO/IEC_11179" title="ISO/IEC 11179">11179</a></li> <li><a href="/wiki/ISO/IEC_11404" title="ISO/IEC 11404">11404</a></li> <li><a href="/wiki/JBIG" title="JBIG">11544</a></li> <li><a href="/wiki/ISO_11783" title="ISO 11783">11783</a></li> <li><a href="/wiki/ISO_11784_and_ISO_11785" title="ISO 11784 and ISO 11785">11784</a></li> <li><a href="/wiki/ISO_11784_and_ISO_11785" title="ISO 11784 and ISO 11785">11785</a></li> <li><a href="/wiki/ISO/IEC_11801" title="ISO/IEC 11801">11801</a></li> <li><a href="/wiki/Trusted_Platform_Module" title="Trusted Platform Module">11889</a></li> <li><a href="/wiki/CAN_bus#CAN_lower-layer_standards" title="CAN bus">11898</a></li> <li><a href="/wiki/ISO_11940" title="ISO 11940">11940</a> (<a href="/wiki/ISO_11940-2" title="ISO 11940-2">-2</a>)</li> <li><a href="/wiki/ISO/TR_11941" title="ISO/TR 11941">11941</a></li> <li><a href="/wiki/ISO/TR_11941" title="ISO/TR 11941">11941 (TR)</a></li> <li><a href="/wiki/ISO_11992" title="ISO 11992">11992</a></li> <li><a href="/wiki/ISO_12006" title="ISO 12006">12006</a></li> <li><a href="/wiki/DICOM" title="DICOM">12052</a></li> <li><a href="/wiki/ISO/IEC_TR_12182" title="ISO/IEC TR 12182">12182</a></li> <li><a href="/wiki/ISO/IEC_12207" title="ISO/IEC 12207">12207</a></li> <li><a href="/wiki/TIFF/EP" title="TIFF/EP">12234-2</a></li> <li><a href="/wiki/Linguistic_categories#ISO_12620_(ISO_TC37_Data_Category_Registry,_ISOcat)" title="Linguistic categories">12620</a></li> <li><a href="/wiki/Prolog" title="Prolog">13211</a> <ul><li><a href="/wiki/Prolog" title="Prolog">-1</a></li> <li><a href="/wiki/Prolog" title="Prolog">-2</a></li></ul></li> <li><a href="/wiki/Isofix" title="Isofix">13216</a></li> <li><a href="/wiki/Topic_map" title="Topic map">13250</a></li> <li><a href="/wiki/ISO_13399" title="ISO 13399">13399</a></li> <li><a href="/wiki/ISO_13406-2" title="ISO 13406-2">13406-2</a></li> <li><a href="/wiki/110_film" title="110 film">13450</a></li> <li><a href="/wiki/ISO_13485" title="ISO 13485">13485</a></li> <li><a href="/wiki/ISO_13490" title="ISO 13490">13490</a></li> <li><a href="/wiki/ISO_13567" title="ISO 13567">13567</a></li> <li><a href="/wiki/Z_notation" title="Z notation">13568</a></li> <li><a href="/wiki/ISO_13584" title="ISO 13584">13584</a></li> <li><a href="/wiki/International_Bank_Account_Number" title="International Bank Account Number">13616</a></li> <li><a href="/wiki/ISLISP" title="ISLISP">13816</a></li> <li><a href="/wiki/MPEG-2" title="MPEG-2">13818</a></li> <li><a href="/wiki/ISO_14000" class="mw-redirect" title="ISO 14000">14000</a></li> <li><a href="/wiki/ISO_14031" title="ISO 14031">14031</a></li> <li><a href="/wiki/ISO_14224" title="ISO 14224">14224</a></li> <li><a href="/wiki/PDF/UA" title="PDF/UA">14289</a></li> <li><a href="/wiki/Horsepower" title="Horsepower">14396</a></li> <li><a href="/wiki/ISO/IEC_14443" title="ISO/IEC 14443">14443</a></li> <li><a href="/wiki/MPEG-4" title="MPEG-4">14496</a> <ul><li><a href="/wiki/MPEG-4_Part_2" title="MPEG-4 Part 2">-2</a></li> <li><a href="/wiki/MPEG-4_Part_3" title="MPEG-4 Part 3">-3</a></li> <li><a href="/wiki/Delivery_Multimedia_Integration_Framework" title="Delivery Multimedia Integration Framework">-6</a></li> <li><a href="/wiki/Advanced_Video_Coding" title="Advanced Video Coding">-10</a></li> <li><a href="/wiki/MPEG-4_Part_11" title="MPEG-4 Part 11">-11</a></li> <li><a href="/wiki/ISO_base_media_file_format" title="ISO base media file format">-12</a></li> <li><a href="/wiki/MP4_file_format" title="MP4 file format">-14</a></li> <li><a href="/wiki/MP4_file_format" title="MP4 file format">-17</a></li> <li><a href="/wiki/MP4_file_format" title="MP4 file format">-20</a></li></ul></li> <li><a href="/wiki/ISO_14617" title="ISO 14617">14617</a></li> <li><a href="/wiki/ISO_14644" title="ISO 14644">14644</a></li> <li><a href="/wiki/STEP-NC" title="STEP-NC">14649</a></li> <li><a href="/wiki/ISO/IEC_14651" title="ISO/IEC 14651">14651</a></li> <li><a href="/wiki/ISO_14698" title="ISO 14698">14698</a></li> <li><a href="/wiki/Software_maintenance" title="Software maintenance">14764</a></li> <li><a href="/wiki/C%2B%2B" title="C++">14882</a></li> <li><a href="/wiki/ISO_14971" title="ISO 14971">14971</a></li> <li><a href="/wiki/ISO_15022" title="ISO 15022">15022</a></li> <li><a href="/wiki/ISO_15189" title="ISO 15189">15189</a></li> <li><a href="/wiki/ISO/IEC_15288" title="ISO/IEC 15288">15288</a></li> <li><a href="/wiki/Ada_Semantic_Interface_Specification" title="Ada Semantic Interface Specification">15291</a></li> <li><a href="/wiki/ISO_15398" title="ISO 15398">15398</a></li> <li><a href="/wiki/Common_Criteria" title="Common Criteria">15408</a></li> <li><a href="/wiki/JPEG_2000" title="JPEG 2000">15444</a> <ul><li><a href="/wiki/Motion_JPEG_2000" title="Motion JPEG 2000">-3</a></li> <li><a href="/wiki/JPIP" title="JPIP">-9</a></li></ul></li> <li><a href="/wiki/HTML" title="HTML">15445</a></li> <li><a href="/wiki/PDF417" title="PDF417">15438</a></li> <li><a href="/wiki/ISO/IEC_15504" title="ISO/IEC 15504">15504</a></li> <li><a href="/wiki/International_Standard_Identifier_for_Libraries_and_Related_Organizations" title="International Standard Identifier for Libraries and Related Organizations">15511</a></li> <li><a href="/wiki/ISO_15686" title="ISO 15686">15686</a></li> <li><a href="/wiki/ISO/IEC_15693" title="ISO/IEC 15693">15693</a></li> <li><a href="/wiki/International_Standard_Audiovisual_Number" title="International Standard Audiovisual Number">15706</a> <ul><li><a href="/wiki/International_Standard_Audiovisual_Number" title="International Standard Audiovisual Number">-2</a></li></ul></li> <li><a href="/wiki/International_Standard_Musical_Work_Code" title="International Standard Musical Work Code">15707</a></li> <li><a href="/wiki/ISO/IEC_15897" title="ISO/IEC 15897">15897</a></li> <li><a href="/wiki/ISO_15919" title="ISO 15919">15919</a></li> <li><a href="/wiki/ISO_15924" title="ISO 15924">15924</a></li> <li><a href="/wiki/ISO_15926" title="ISO 15926">15926</a></li> <li><a href="/wiki/ISO_15926_WIP" title="ISO 15926 WIP">15926 WIP</a></li> <li><a href="/wiki/PDF/X" title="PDF/X">15930</a></li> <li><a href="/wiki/MPEG-7" title="MPEG-7">15938</a></li> <li><a href="/wiki/MaxiCode" title="MaxiCode">16023</a></li> <li><a href="/wiki/ECMAScript" title="ECMAScript">16262</a></li> <li><a href="/wiki/Quality_function_deployment" title="Quality function deployment">16355-1</a></li> <li><a href="/wiki/Mixed_raster_content" title="Mixed raster content">16485</a></li> <li><a href="/wiki/PDF/VT" title="PDF/VT">16612-2</a></li> <li><a href="/wiki/ISO_16750" title="ISO 16750">16750</a></li> <li><a href="/wiki/IATF_16949" title="IATF 16949">16949 (TS)</a></li> <li><a href="/wiki/ISO/IEC_17024" title="ISO/IEC 17024">17024</a></li> <li><a href="/wiki/ISO/IEC_17025" title="ISO/IEC 17025">17025</a></li> <li><a href="/wiki/ISO_17100" title="ISO 17100">17100</a></li> <li><a href="/wiki/Open_Virtualization_Format" title="Open Virtualization Format">17203</a></li> <li><a href="/wiki/SDMX" title="SDMX">17369</a></li> <li><a href="/wiki/Legal_Entity_Identifier" title="Legal Entity Identifier">17442</a></li> <li><a href="/wiki/COLLADA" title="COLLADA">17506</a></li> <li><a href="/wiki/ISO/IEC_27002" title="ISO/IEC 27002">17799</a></li> <li><a href="/wiki/QR_code" title="QR code">18004</a></li> <li><a href="/wiki/ISO/IEC_18014" title="ISO/IEC 18014">18014</a></li> <li><a href="/wiki/JPEG_XL" title="JPEG XL">18181</a></li> <li><a href="/wiki/ISO_18245" title="ISO 18245">18245</a></li> <li><a href="/wiki/Process_Specification_Language" title="Process Specification Language">18629</a></li> <li><a href="/wiki/Photographic_Activity_Test" title="Photographic Activity Test">18916</a></li> <li><a href="/wiki/PDF/A" title="PDF/A">19005</a></li> <li><a href="/wiki/ISO_19011" title="ISO 19011">19011</a></li> <li><a href="/wiki/ISO_19092-1" class="mw-redirect" title="ISO 19092-1">19092</a> <ul><li><a href="/wiki/ISO_19092-1" class="mw-redirect" title="ISO 19092-1">-1</a></li> <li><a href="/wiki/ISO_19092-2" class="mw-redirect" title="ISO 19092-2">-2</a></li></ul></li> <li><a href="/wiki/ISO_19114" title="ISO 19114">19114</a></li> <li><a href="/wiki/Geospatial_metadata#ISO_19115:_Geographic_information_–_Metadata" title="Geospatial metadata">19115</a></li> <li><a href="/wiki/Simple_Features" title="Simple Features">19125</a></li> <li><a href="/wiki/Geography_Markup_Language#ISO_19136" title="Geography Markup Language">19136</a></li> <li><a href="/wiki/Shoe_size" title="Shoe size">19407</a></li> <li><a href="/wiki/ISO_19439" title="ISO 19439">19439</a></li> <li><a href="/wiki/Common_Object_Request_Broker_Architecture" title="Common Object Request Broker Architecture">19500</a></li> <li><a href="/wiki/Unified_Modeling_Language" title="Unified Modeling Language">19501</a></li> <li><a href="/wiki/Meta-Object_Facility" title="Meta-Object Facility">19502</a></li> <li><a href="/wiki/XML_Metadata_Interchange" title="XML Metadata Interchange">19503</a></li> <li><a href="/wiki/Unified_Modeling_Language" title="Unified Modeling Language">19505</a></li> <li><a href="/wiki/Knowledge_Discovery_Metamodel" title="Knowledge Discovery Metamodel">19506</a></li> <li><a href="/wiki/Object_Constraint_Language" title="Object Constraint Language">19507</a></li> <li><a href="/wiki/Meta-Object_Facility" title="Meta-Object Facility">19508</a></li> <li><a href="/wiki/XML_Metadata_Interchange" title="XML Metadata Interchange">19509</a></li> <li><a href="/wiki/Business_Process_Model_and_Notation" title="Business Process Model and Notation">19510</a></li> <li><a href="/wiki/ISO_19600" title="ISO 19600">19600</a></li> <li><a href="/wiki/ISO/IEC_19752" title="ISO/IEC 19752">19752</a></li> <li><a href="/wiki/RELAX_NG" title="RELAX NG">19757</a></li> <li><a href="/wiki/ISO/IEC_19770" title="ISO/IEC 19770">19770</a></li> <li><a href="/wiki/X3D" title="X3D">19775-1</a></li> <li><a href="/wiki/ISO/IEC_19794-5" title="ISO/IEC 19794-5">19794-5</a></li> <li><a href="/wiki/Cloud_Infrastructure_Management_Interface" title="Cloud Infrastructure Management Interface">19831</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">20000–29999</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ISO/IEC_20000" title="ISO/IEC 20000">20000</a></li> <li><a href="/wiki/ISO_20022" title="ISO 20022">20022</a></li> <li><a href="/wiki/ISO_20121" title="ISO 20121">20121</a></li> <li><a href="/wiki/ISO_20400" title="ISO 20400">20400</a></li> <li><a href="/wiki/Open_Data_Protocol" title="Open Data Protocol">20802</a></li> <li><a href="/wiki/Han_Xin_code" title="Han Xin code">20830</a></li> <li><a href="/wiki/MPEG-21" title="MPEG-21">21000</a></li> <li><a href="/wiki/ISO_21001" title="ISO 21001">21001</a></li> <li><a href="/wiki/International_Standard_Text_Code" title="International Standard Text Code">21047</a></li> <li><a href="/wiki/JPEG_XS" title="JPEG XS">21122</a></li> <li><a href="/wiki/ISO_21500" title="ISO 21500">21500</a></li> <li><a href="/wiki/ISO/IEC_21827" title="ISO/IEC 21827">21827</a></li> <li><a href="/wiki/ISO_22000" title="ISO 22000">22000</a></li> <li><a href="/wiki/ECMAScript" title="ECMAScript">22275</a></li> <li><a href="/wiki/ISO_22300" title="ISO 22300">22300</a></li> <li><a href="/wiki/ISO_22301" title="ISO 22301">22301</a></li> <li><a href="/wiki/ISO_22395" title="ISO 22395">22395</a></li> <li><a href="/wiki/ECMAScript_for_XML" title="ECMAScript for XML">22537</a></li> <li><a href="/wiki/MPEG-A" title="MPEG-A">23000</a></li> <li><a href="/wiki/MPEG-D" title="MPEG-D">23003</a></li> <li><a href="/wiki/MPEG-H" title="MPEG-H">23008</a></li> <li><a href="/wiki/Dynamic_Adaptive_Streaming_over_HTTP" title="Dynamic Adaptive Streaming over HTTP">23009</a></li> <li><a href="/wiki/Versatile_Video_Coding" title="Versatile Video Coding">23090-3</a></li> <li><a href="/wiki/MPEG-G" title="MPEG-G">23092</a></li> <li><a href="/wiki/Essential_Video_Coding" title="Essential Video Coding">23094-1</a></li> <li><a href="/wiki/LCEVC" title="LCEVC">23094-2</a></li> <li><a href="/wiki/C_Sharp_(programming_language)" title="C Sharp (programming language)">23270</a></li> <li><a href="/wiki/Common_Language_Infrastructure" title="Common Language Infrastructure">23271</a></li> <li><a href="/wiki/Linux_Standard_Base" title="Linux Standard Base">23360</a></li> <li><a href="/wiki/Rectangular_Micro_QR_Code" title="Rectangular Micro QR Code">23941</a></li> <li><a href="/wiki/PDF/E" title="PDF/E">24517</a></li> <li><a href="/wiki/Lexical_Markup_Framework" title="Lexical Markup Framework">24613</a></li> <li><a href="/wiki/ISO-TimeML" title="ISO-TimeML">24617</a></li> <li><a href="/wiki/Common_Logic" title="Common Logic">24707</a></li> <li><a href="/wiki/MicroPDF417" title="MicroPDF417">24728</a></li> <li><a href="/wiki/ISO_25178" title="ISO 25178">25178</a></li> <li><a href="/wiki/ISO_25964" title="ISO 25964">25964</a></li> <li><a href="/wiki/ISO_26000" title="ISO 26000">26000</a></li> <li><a href="/wiki/ISO_26262" title="ISO 26262">26262</a></li> <li><a href="/wiki/OpenDocument" title="OpenDocument">26300</a></li> <li><a href="/wiki/Digital_object_identifier" title="Digital object identifier">26324</a></li> <li><a href="/wiki/ISO/IEC_27000-series" class="mw-redirect" title="ISO/IEC 27000-series">27000 series</a></li> <li><a href="/wiki/ISO/IEC_27000" title="ISO/IEC 27000">27000</a></li> <li><a href="/wiki/ISO/IEC_27001" title="ISO/IEC 27001">27001</a></li> <li><a href="/wiki/ISO/IEC_27002" title="ISO/IEC 27002">27002</a></li> <li><a href="/wiki/ISO/IEC_27005" title="ISO/IEC 27005">27005</a></li> <li><a href="/wiki/ISO/IEC_27006" title="ISO/IEC 27006">27006</a></li> <li><a href="/wiki/International_Standard_Name_Identifier" title="International Standard Name Identifier">27729</a></li> <li><a href="/wiki/ISO_28000" title="ISO 28000">28000</a></li> <li>29110</li> <li><a href="/wiki/Requirements_engineering" title="Requirements engineering">29148</a></li> <li><a href="/wiki/JPEG_XR" title="JPEG XR">29199-2</a></li> <li><a href="/wiki/Office_Open_XML" title="Office Open XML">29500</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">30000+</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ruby_(programming_language)" title="Ruby (programming language)">30170</a></li> <li><a href="/wiki/ISO_31000" title="ISO 31000">31000</a></li> <li><a href="/wiki/PDF" title="PDF">32000</a></li> <li><a href="/wiki/ISO_37001" title="ISO 37001">37001</a></li> <li><a href="/wiki/ISO/IEC_38500" title="ISO/IEC 38500">38500</a></li> <li><a href="/wiki/Graph_Query_Language" title="Graph Query Language">39075</a></li> <li><a href="/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines">40500</a></li> <li><a href="/wiki/ISO/IEC_42010" title="ISO/IEC 42010">42010</a></li> <li><a href="/wiki/ISO_45001" title="ISO 45001">45001</a></li> <li><a href="/wiki/ISO_50001" title="ISO 50001">50001</a></li> <li><a href="/wiki/ISO_55000" title="ISO 55000">55000</a></li> <li><a href="/wiki/ISO_56000" title="ISO 56000">56000</a></li> <li><a href="/wiki/ISO/IEC_80000" title="ISO/IEC 80000">80000</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:ISO_standards" title="Category:ISO standards">Category</a></li></ul> </div></td></tr></tbody></table></div> <!-- 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