{"id":16048,"date":"2025-12-10T12:26:55","date_gmt":"2025-12-10T18:26:55","guid":{"rendered":"https:\/\/blog.misumiusa.com\/?page_id=16048"},"modified":"2025-12-10T12:34:56","modified_gmt":"2025-12-10T18:34:56","slug":"torque-specs-for-bolts","status":"publish","type":"page","link":"https:\/\/us.misumi-ec.com\/blog\/torque-specs-for-bolts\/","title":{"rendered":"Torque Specs for US Bolt Sizes"},"content":{"rendered":"\n<p>Every bolt size has a recommended torque range based on its diameter, thread pitch, and strength grade. These values are especially important when assembling machinery, structural components, or equipment where clamp force must remain consistent over time. The table below lists baseline torque guidelines for common U.S. bolt sizes.<\/p>\n\n\n\n<h2>Bolt Torque Spec Chart<\/h2>\n\n\n\n\n\n\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <style>\n        .torque-table-container {\n            width: 100%;\n            overflow-x: auto;\n            font-family: Arial, sans-serif;\n            margin: 20px 0;\n        }\n\n        .torque-table {\n            width: 100%;\n            border-collapse: collapse;\n            background: white;\n            box-shadow: 0 2px 4px rgba(0,0,0,0.1);\n        }\n\n        .torque-table th {\n            background: #1a1a1a;\n            color: white;\n            padding: 12px 8px;\n            text-align: center;\n            font-weight: 600;\n            border: 1px solid #333;\n            font-size: 14px;\n        }\n\n        .torque-table th.size-header {\n            background: #0066cc;\n            font-size: 15px;\n        }\n\n        .torque-table th.grade-header {\n            background: #1a1a1a;\n            font-size: 13px;\n            font-weight: 500;\n        }\n\n        .torque-table th.thread-header {\n            background: #333;\n            font-size: 12px;\n            font-weight: normal;\n        }\n\n        .torque-table td {\n            padding: 10px 8px;\n            text-align: center;\n            border: 1px solid #ddd;\n            font-size: 13px;\n            color: #1a1a1a;\n        }\n\n        .torque-table tbody tr:hover {\n            background: #fff9e6;\n            cursor: default;\n        }\n\n        .torque-table td.size-cell {\n            background: #f5f5f5;\n            font-weight: 600;\n            color: #0066cc;\n        }\n\n        .torque-table tbody tr:hover td.size-cell {\n            background: #ffe680;\n        }\n\n        .torque-table td:empty::after {\n            content: \"-\";\n            color: #ccc;\n        }\n\n        .table-note {\n            font-size: 11px;\n            color: #666;\n            margin-top: 10px;\n            text-align: center;\n            font-style: italic;\n        }\n    <\/style>\n\n\n    <div class=\"torque-table-container\">\n        <table class=\"torque-table\">\n            <thead>\n                <tr>\n                    <th class=\"size-header\" rowspan=\"3\">Size<\/th>\n                    <th class=\"grade-header\" colspan=\"2\">Grade 2<\/th>\n                    <th class=\"grade-header\" colspan=\"2\">Grade 5<\/th>\n                    <th class=\"grade-header\" colspan=\"2\">Grade 8<\/th>\n                    <th class=\"grade-header\" colspan=\"2\">18-8 S\/S<\/th>\n                    <th class=\"grade-header\" colspan=\"2\">Bronze<\/th>\n                    <th class=\"grade-header\" colspan=\"2\">Brass<\/th>\n                    <th class=\"grade-header\" colspan=\"2\">A2\/A4 S\/S<\/th>\n                <\/tr>\n                <tr>\n                    <th class=\"thread-header\">Coarse<\/th>\n                    <th class=\"thread-header\">Fine<\/th>\n                    <th class=\"thread-header\">Coarse<\/th>\n                    <th class=\"thread-header\">Fine<\/th>\n                    <th class=\"thread-header\">Coarse<\/th>\n                    <th class=\"thread-header\">Fine<\/th>\n                    <th class=\"thread-header\">Coarse<\/th>\n                    <th class=\"thread-header\">Fine<\/th>\n                    <th class=\"thread-header\">Coarse<\/th>\n                    <th class=\"thread-header\">Fine<\/th>\n                    <th class=\"thread-header\">Coarse<\/th>\n                    <th class=\"thread-header\">Fine<\/th>\n                    <th class=\"thread-header\">Coarse<\/th>\n                    <th class=\"thread-header\">Fine<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td class=\"size-cell\">#1<\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td>0.3<\/td><td><\/td>\n                    <td>0.2<\/td><td><\/td>\n                    <td>0.2<\/td><td><\/td>\n                    <td>0.3<\/td><td><\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">#2<\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td>0.6<\/td><td><\/td>\n                    <td>0.5<\/td><td><\/td>\n                    <td>0.4<\/td><td><\/td>\n                    <td>0.6<\/td><td><\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">#3<\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td>1.1<\/td><td><\/td>\n                    <td>0.9<\/td><td><\/td>\n                    <td>0.8<\/td><td><\/td>\n                    <td>1.0<\/td><td><\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">#4<\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td>5.2<\/td><td><\/td>\n                    <td>4.8<\/td><td><\/td>\n                    <td>4.3<\/td><td><\/td>\n                    <td>5.0<\/td><td><\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">#5<\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td>9.5<\/td><td><\/td>\n                    <td>8.9<\/td><td><\/td>\n                    <td>7.9<\/td><td><\/td>\n                    <td>9.2<\/td><td><\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">#6<\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td>14.5<\/td><td><\/td>\n                    <td>13.5<\/td><td><\/td>\n                    <td>12.0<\/td><td><\/td>\n                    <td>14.0<\/td><td><\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">#8<\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td>19.8<\/td><td><\/td>\n                    <td>18.4<\/td><td><\/td>\n                    <td>16.2<\/td><td><\/td>\n                    <td>19.0<\/td><td><\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">#10<\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td><\/td><td><\/td>\n                    <td>22.8<\/td><td>31.7<\/td>\n                    <td>21.2<\/td><td>29.3<\/td>\n                    <td>18.6<\/td><td>25.9<\/td>\n                    <td>22.0<\/td><td>30.5<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">1\/4&#8243;<\/td>\n                    <td>4<\/td><td>4.7<\/td>\n                    <td>6.3<\/td><td>7.3<\/td>\n                    <td>9<\/td><td>10<\/td>\n                    <td>6.3<\/td><td>7.8<\/td>\n                    <td>5.7<\/td><td>7.3<\/td>\n                    <td>5.1<\/td><td>6.4<\/td>\n                    <td>6.5<\/td><td>8.0<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">5\/16&#8243;<\/td>\n                    <td>8<\/td><td>9<\/td>\n                    <td>13<\/td><td>14<\/td>\n                    <td>18<\/td><td>20<\/td>\n                    <td>11<\/td><td>11.8<\/td>\n                    <td>10.3<\/td><td>10.9<\/td>\n                    <td>8.9<\/td><td>9.7<\/td>\n                    <td>11.5<\/td><td>12.2<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">3\/8&#8243;<\/td>\n                    <td>15<\/td><td>17<\/td>\n                    <td>23<\/td><td>26<\/td>\n                    <td>33<\/td><td>37<\/td>\n                    <td>20<\/td><td>22<\/td>\n                    <td>18<\/td><td>20<\/td>\n                    <td>16<\/td><td>18<\/td>\n                    <td>21<\/td><td>23<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">7\/16&#8243;<\/td>\n                    <td>24<\/td><td>27<\/td>\n                    <td>37<\/td><td>41<\/td>\n                    <td>52<\/td><td>58<\/td>\n                    <td>31<\/td><td>33<\/td>\n                    <td>29<\/td><td>31<\/td>\n                    <td>26<\/td><td>27<\/td>\n                    <td>32<\/td><td>34<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">1\/2&#8243;<\/td>\n                    <td>37<\/td><td>41<\/td>\n                    <td>57<\/td><td>64<\/td>\n                    <td>80<\/td><td>90<\/td>\n                    <td>43<\/td><td>45<\/td>\n                    <td>40<\/td><td>42<\/td>\n                    <td>35<\/td><td>37<\/td>\n                    <td>44<\/td><td>46<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">9\/16&#8243;<\/td>\n                    <td>53<\/td><td>59<\/td>\n                    <td>82<\/td><td>91<\/td>\n                    <td>115<\/td><td>129<\/td>\n                    <td>57<\/td><td>63<\/td>\n                    <td>53<\/td><td>58<\/td>\n                    <td>47<\/td><td>51<\/td>\n                    <td>59<\/td><td>65<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">5\/8&#8243;<\/td>\n                    <td>73<\/td><td>83<\/td>\n                    <td>112<\/td><td>128<\/td>\n                    <td>159<\/td><td>180<\/td>\n                    <td>93<\/td><td>104<\/td>\n                    <td>86<\/td><td>96<\/td>\n                    <td>76<\/td><td>85<\/td>\n                    <td>96<\/td><td>107<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">3\/4&#8243;<\/td>\n                    <td>125<\/td><td>138<\/td>\n                    <td>200<\/td><td>223<\/td>\n                    <td>282<\/td><td>315<\/td>\n                    <td>128<\/td><td>124<\/td>\n                    <td>104<\/td><td>102<\/td>\n                    <td>118<\/td><td>115<\/td>\n                    <td>132<\/td><td>128<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">7\/8&#8243;<\/td>\n                    <td>129<\/td><td>144<\/td>\n                    <td>322<\/td><td>355<\/td>\n                    <td>454<\/td><td>501<\/td>\n                    <td>194<\/td><td>193<\/td>\n                    <td>178<\/td><td>178<\/td>\n                    <td>159<\/td><td>158<\/td>\n                    <td>200<\/td><td>199<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">1&#8243;<\/td>\n                    <td>188<\/td><td>210<\/td>\n                    <td>483<\/td><td>541<\/td>\n                    <td>682<\/td><td>764<\/td>\n                    <td>287<\/td><td>289<\/td>\n                    <td>265<\/td><td>240<\/td>\n                    <td>235<\/td><td>212<\/td>\n                    <td>296<\/td><td>298<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">1-1\/8&#8243;<\/td>\n                    <td>258<\/td><td>288<\/td>\n                    <td>660<\/td><td>738<\/td>\n                    <td>932<\/td><td>1043<\/td>\n                    <td>394<\/td><td>396<\/td>\n                    <td>363<\/td><td>329<\/td>\n                    <td>322<\/td><td>290<\/td>\n                    <td>406<\/td><td>408<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">1-1\/4&#8243;<\/td>\n                    <td>340<\/td><td>380<\/td>\n                    <td>870<\/td><td>974<\/td>\n                    <td>1229<\/td><td>1376<\/td>\n                    <td>520<\/td><td>523<\/td>\n                    <td>479<\/td><td>434<\/td>\n                    <td>425<\/td><td>383<\/td>\n                    <td>536<\/td><td>539<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">1-3\/8&#8243;<\/td>\n                    <td>435<\/td><td>486<\/td>\n                    <td>1113<\/td><td>1246<\/td>\n                    <td>1572<\/td><td>1760<\/td>\n                    <td>665<\/td><td>669<\/td>\n                    <td>613<\/td><td>555<\/td>\n                    <td>543<\/td><td>490<\/td>\n                    <td>686<\/td><td>690<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">1-1\/2&#8243;<\/td>\n                    <td>543<\/td><td>607<\/td>\n                    <td>1389<\/td><td>1555<\/td>\n                    <td>1962<\/td><td>2196<\/td>\n                    <td>830<\/td><td>835<\/td>\n                    <td>765<\/td><td>693<\/td>\n                    <td>678<\/td><td>612<\/td>\n                    <td>856<\/td><td>861<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">1-3\/4&#8243;<\/td>\n                    <td>840<\/td><td>939<\/td>\n                    <td>2149<\/td><td>2406<\/td>\n                    <td>3036<\/td><td>3399<\/td>\n                    <td>1285<\/td><td>1292<\/td>\n                    <td>1184<\/td><td>1073<\/td>\n                    <td>1050<\/td><td>948<\/td>\n                    <td>1325<\/td><td>1332<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"size-cell\">2&#8243;<\/td>\n                    <td>1210<\/td><td>1353<\/td>\n                    <td>3095<\/td><td>3465<\/td>\n                    <td>4371<\/td><td>4894<\/td>\n                    <td>1850<\/td><td>1860<\/td>\n                    <td>1705<\/td><td>1545<\/td>\n                    <td>1512<\/td><td>1364<\/td>\n                    <td>1907<\/td><td>1918<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n        <div class=\"table-note\">\n            * All torque values are in lb-ft for dry, slightly lubricated bolts<br>\n            \u2020 Sizes #1-#10 represent machine screw sizes; fractional sizes are standard bolt sizes\n        <\/div>\n    <\/div>\n\n\n\n\n\n<p><\/p>\n\n\n\n<h2>Parting Thoughts<\/h2>\n\n\n\n<p><a href=\"https:\/\/us.misumi-ec.com\/\">MISUMI USA<\/a>&nbsp;carries a wide range of&nbsp;<a href=\"https:\/\/us.misumi-ec.com\/vona2\/mech_screw\/M3301000000\/\" title=\"\">bolts, fasteners<\/a>, and <a href=\"https:\/\/us.misumi-ec.com\/vona2\/fs_processing\/T0600000000\/T0606000000\/\" title=\"\">torque wrenches<\/a>. If you have any questions about torque concerns for your next project or fix, please feel free to contact our&nbsp;<a href=\"https:\/\/us.misumi-ec.com\/service\/info\/help-center\/product-support.html\">product experts, and engineers<\/a>. For more insights about bolts, and torque, and other manufacturing related articles be sure to check out our blog, and articles like \u2013&nbsp;<a href=\"https:\/\/us.misumi-ec.com\/blog\/torque-conversion-calculator\/\" title=\"\">Torque Conversion Calculator<\/a>,&nbsp;<a href=\"https:\/\/us.misumi-ec.com\/blog\/torque-conversions-charts\/\" title=\"\">Torque Conversion Charts<\/a>,&nbsp;<a href=\"https:\/\/us.misumi-ec.com\/blog\/socket-size-chart\/\">Socket Size Chart<\/a>, and more.<\/p>\n\n\n\n<p><strong>Author:<\/strong>&nbsp;<a href=\"https:\/\/us.misumi-ec.com\/blog\/author\/sbredemann\/\">Scott Bredemann<\/a> | <strong>Updated<\/strong>: 12\/10\/2025<\/p>\n\n\n\n<p class=\"has-small-font-size\"><strong>Disclaimer<\/strong>:<br>The content on this webpage is for informational purposes only. MISUMI makes no guarantees, expressed or implied, regarding the accuracy, completeness, or validity of the information. Performance parameters, tolerances, designs, materials, or processes should not be assumed to reflect third-party suppliers\u2019 or manufacturers\u2019 deliverables within MISUMI\u2019s network. Buyers are responsible for specifying their part requirements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Every bolt size has a recommended torque range based on its diameter, thread pitch, and strength grade. These values are especially important when assembling machinery, structural components, or equipment where clamp force must remain consistent over time. The table below lists baseline torque guidelines for common U.S. bolt sizes. Bolt Torque Spec Chart Size Grade 2 Grade 5 Grade 8 [&hellip;]<\/p>\n","protected":false},"author":70,"featured_media":16053,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/16048"}],"collection":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/users\/70"}],"replies":[{"embeddable":true,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/comments?post=16048"}],"version-history":[{"count":5,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/16048\/revisions"}],"predecessor-version":[{"id":16055,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/16048\/revisions\/16055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/media\/16053"}],"wp:attachment":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/media?parent=16048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}