{"id":14775,"date":"2025-04-14T13:38:46","date_gmt":"2025-04-14T18:38:46","guid":{"rendered":"https:\/\/blog.misumiusa.com\/?page_id=14775"},"modified":"2025-04-15T13:26:20","modified_gmt":"2025-04-15T18:26:20","slug":"metric-socket-head-cap-screws-dimensions","status":"publish","type":"page","link":"https:\/\/blog.misumiusa.com\/metric-socket-head-cap-screws-dimensions\/","title":{"rendered":"Metric Socket Head Cap Screws Size Table"},"content":{"rendered":"\n<p>Metric socket head cap screws (also known as Allen head screws) are precision fasteners. These fasteners are characterized by their cylindrical head with a recessed hexagonal socket, which allows for <a href=\"https:\/\/us.misumi-ec.com\/blog\/torque-conversion-calculator\/\" title=\"\">high torque application<\/a> in confined spaces where traditional external drive screws cannot be used. The table provides standard dimensions for metric <a href=\"https:\/\/us.misumi-ec.com\/blog\/socket-head-cap-screws\/\" title=\"\">socket head cap screws<\/a> according to ISO specifications. All measurements are shown in millimeters (mm). The size designation (e.g., M8 \u00d7 1.25) indicates the nominal thread diameter followed by the thread pitch.<br><\/p>\n\n\n\n<p>Key dimensions included in the table are body diameter, head diameter, head height, chamfer\/radius measurements, hex socket size, key engagement depth, and transition diameter. These specifications are critical for proper selection, installation, and replacement of metric fasteners in various applications.  This reference chart covers common sizes ranging from M1.6 to M48, with both their maximum and minimum tolerance values to ensure proper fit and function in precision applications.<\/p>\n\n\n\n<style>\n    \/* Isolated styles that won't affect rest of page *\/\n    .screw-table-container {\n      font-family: Arial, sans-serif;\n      margin: 20px;\n      max-width: 100%;\n      overflow-x: auto;\n    }\n    \n    .screw-table {\n      border-collapse: collapse;\n      width: 100%;\n      box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);\n      border-radius: 5px;\n      overflow: hidden;\n      font-size: 14px;\n    }\n    \n    .screw-table td {\n      padding: 8px 10px;\n      text-align: center;\n      border: 1px solid #ddd;\n      white-space: nowrap;\n    }\n    \n    .screw-table th {\n      padding: 8px 5px;\n      text-align: center;\n      border: 1px solid #ddd;\n      background-color: #4267B2;\n      color: white;\n      font-weight: bold;\n      text-transform: uppercase;\n      font-size: 11px;\n      white-space: normal;\n      word-wrap: break-word;\n      max-width: 60px;\n      vertical-align: bottom;\n      line-height: 1.2;\n    }\n    \n    .screw-table tr {\n      background-color: #f8f8f8;\n      transition: background-color 0.3s ease;\n    }\n    \n    .screw-table tr:nth-child(even) {\n      background-color: #f2f2f2;\n    }\n    \n    .screw-table tr:hover {\n      background-color: #dde9ff;\n      cursor: pointer;\n      transform: scale(1.01);\n      transition: transform 0.2s ease;\n      box-shadow: 0 0 10px rgba(0,0,0,0.1);\n    }\n    \n    .screw-table caption {\n      font-weight: bold;\n      font-size: 1.2em;\n      margin-bottom: 10px;\n      color: #333;\n    }\n  <\/style>\n\n\n  <div class=\"screw-table-container\">\n    <table class=\"screw-table\">\n      <caption>Metric Socket Head Cap Screws Dimensions<\/caption>\n      <thead>\n        <tr>\n          <th>Nominal Size<\/th>\n          <th>Body Dia D Max<\/th>\n          <th>Body Dia D Min<\/th>\n          <th>Head Dia A Max<\/th>\n          <th>Head Dia A Min<\/th>\n          <th>Head Height H Max<\/th>\n          <th>Head Height H Min<\/th>\n          <th>Chamfer\/ Radius S Max<\/th>\n          <th>Hex Socket J Nom<\/th>\n          <th>Key Engage T Min<\/th>\n          <th>Trans Dia B Max<\/th>\n        <\/tr>\n      <\/thead>\n      <tbody>\n        <tr>\n          <td>M1.6 \u00d7 0.35<\/td>\n          <td>1.60<\/td>\n          <td>1.58<\/td>\n          <td>3.00<\/td>\n          <td>2.86<\/td>\n          <td>1.60<\/td>\n          <td>1.52<\/td>\n          <td>0.18<\/td>\n          <td>1.5<\/td>\n          <td>0.7<\/td>\n          <td>1.6<\/td>\n        <\/tr>\n        <tr>\n          <td>M2 \u00d7 0.4<\/td>\n          <td>2.00<\/td>\n          <td>1.98<\/td>\n          <td>3.80<\/td>\n          <td>3.65<\/td>\n          <td>2.00<\/td>\n          <td>1.86<\/td>\n          <td>0.20<\/td>\n          <td>1.5<\/td>\n          <td>1.0<\/td>\n          <td>2.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M2.5 \u00d7 0.45<\/td>\n          <td>2.50<\/td>\n          <td>2.48<\/td>\n          <td>4.50<\/td>\n          <td>4.35<\/td>\n          <td>2.50<\/td>\n          <td>2.35<\/td>\n          <td>0.25<\/td>\n          <td>2.0<\/td>\n          <td>1.1<\/td>\n          <td>2.5<\/td>\n        <\/tr>\n        <tr>\n          <td>M3 \u00d7 0.5<\/td>\n          <td>3.00<\/td>\n          <td>2.98<\/td>\n          <td>5.50<\/td>\n          <td>5.32<\/td>\n          <td>3.00<\/td>\n          <td>2.82<\/td>\n          <td>0.30<\/td>\n          <td>2.5<\/td>\n          <td>1.3<\/td>\n          <td>3.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M4 \u00d7 0.7<\/td>\n          <td>4.00<\/td>\n          <td>3.97<\/td>\n          <td>7.00<\/td>\n          <td>6.81<\/td>\n          <td>4.00<\/td>\n          <td>3.82<\/td>\n          <td>0.40<\/td>\n          <td>3.0<\/td>\n          <td>1.8<\/td>\n          <td>4.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M5 \u00d7 0.8<\/td>\n          <td>5.00<\/td>\n          <td>4.97<\/td>\n          <td>8.50<\/td>\n          <td>8.29<\/td>\n          <td>5.00<\/td>\n          <td>4.82<\/td>\n          <td>0.50<\/td>\n          <td>4.0<\/td>\n          <td>2.3<\/td>\n          <td>5.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M6 \u00d7 1.0<\/td>\n          <td>6.00<\/td>\n          <td>5.96<\/td>\n          <td>10.00<\/td>\n          <td>9.78<\/td>\n          <td>6.00<\/td>\n          <td>5.82<\/td>\n          <td>0.60<\/td>\n          <td>5.0<\/td>\n          <td>2.5<\/td>\n          <td>6.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M8 \u00d7 1.25<\/td>\n          <td>8.00<\/td>\n          <td>7.96<\/td>\n          <td>13.00<\/td>\n          <td>12.73<\/td>\n          <td>8.00<\/td>\n          <td>7.78<\/td>\n          <td>0.80<\/td>\n          <td>6.0<\/td>\n          <td>3.5<\/td>\n          <td>8.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M10 \u00d7 1.5<\/td>\n          <td>10.00<\/td>\n          <td>9.95<\/td>\n          <td>16.00<\/td>\n          <td>15.73<\/td>\n          <td>10.00<\/td>\n          <td>9.78<\/td>\n          <td>1.00<\/td>\n          <td>8.0<\/td>\n          <td>4.4<\/td>\n          <td>10.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M12 \u00d7 1.75<\/td>\n          <td>12.00<\/td>\n          <td>11.95<\/td>\n          <td>18.00<\/td>\n          <td>17.73<\/td>\n          <td>12.00<\/td>\n          <td>11.73<\/td>\n          <td>1.20<\/td>\n          <td>10.0<\/td>\n          <td>5.3<\/td>\n          <td>12.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M14 \u00d7 2.0<\/td>\n          <td>14.00<\/td>\n          <td>13.93<\/td>\n          <td>21.00<\/td>\n          <td>20.67<\/td>\n          <td>14.00<\/td>\n          <td>13.73<\/td>\n          <td>1.40<\/td>\n          <td>12.0<\/td>\n          <td>6.2<\/td>\n          <td>14.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M16 \u00d7 2.0<\/td>\n          <td>16.00<\/td>\n          <td>15.93<\/td>\n          <td>24.00<\/td>\n          <td>23.67<\/td>\n          <td>16.00<\/td>\n          <td>15.73<\/td>\n          <td>1.60<\/td>\n          <td>14.0<\/td>\n          <td>7.1<\/td>\n          <td>16.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M20 \u00d7 2.5<\/td>\n          <td>20.00<\/td>\n          <td>19.90<\/td>\n          <td>30.00<\/td>\n          <td>29.67<\/td>\n          <td>20.00<\/td>\n          <td>19.48<\/td>\n          <td>2.00<\/td>\n          <td>17.0<\/td>\n          <td>8.8<\/td>\n          <td>20.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M24 \u00d7 3.0<\/td>\n          <td>24.00<\/td>\n          <td>23.90<\/td>\n          <td>36.00<\/td>\n          <td>35.38<\/td>\n          <td>24.00<\/td>\n          <td>23.48<\/td>\n          <td>2.40<\/td>\n          <td>19.0<\/td>\n          <td>10.3<\/td>\n          <td>24.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M30 \u00d7 3.5<\/td>\n          <td>30.00<\/td>\n          <td>29.90<\/td>\n          <td>45.00<\/td>\n          <td>44.38<\/td>\n          <td>30.00<\/td>\n          <td>29.48<\/td>\n          <td>3.00<\/td>\n          <td>22.0<\/td>\n          <td>12.7<\/td>\n          <td>30.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M36 \u00d7 4.0<\/td>\n          <td>36.00<\/td>\n          <td>35.88<\/td>\n          <td>54.00<\/td>\n          <td>53.12<\/td>\n          <td>36.00<\/td>\n          <td>35.38<\/td>\n          <td>3.60<\/td>\n          <td>27.0<\/td>\n          <td>15.4<\/td>\n          <td>36.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M42 \u00d7 4.5<\/td>\n          <td>42.00<\/td>\n          <td>41.88<\/td>\n          <td>63.00<\/td>\n          <td>62.12<\/td>\n          <td>42.00<\/td>\n          <td>41.38<\/td>\n          <td>4.20<\/td>\n          <td>32.0<\/td>\n          <td>17.9<\/td>\n          <td>42.0<\/td>\n        <\/tr>\n        <tr>\n          <td>M48 \u00d7 5.0<\/td>\n          <td>48.00<\/td>\n          <td>47.85<\/td>\n          <td>72.00<\/td>\n          <td>71.10<\/td>\n          <td>48.00<\/td>\n          <td>47.35<\/td>\n          <td>4.80<\/td>\n          <td>36.0<\/td>\n          <td>20.6<\/td>\n          <td>48.0<\/td>\n        <\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-resized is-style-default\"><img loading=\"lazy\" src=\"https:\/\/blog.misumiusa.com\/wp-content\/uploads\/2025\/04\/Socket-Head-Cap-Screw-Dimensions-Image.jpg\" alt=\"Socket Head Cap Screw Dimension Image\" class=\"wp-image-14779\" width=\"515\" height=\"368\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3>Conclusion<\/h3>\n\n\n\n<p>We hope you found this article and table of value for your project and engineering needs.  <a href=\"https:\/\/us.misumi-ec.com\/\" title=\"\">MISUMI USA<\/a> carries a vast array of fasteners, and socket head cap screws.  We also have several articles and tables related to fasteners that you might find helpful including <a href=\"https:\/\/us.misumi-ec.com\/blog\/screw-threads-size-chart\/\" title=\"\">external screw thread size<\/a>.  Please <a href=\"https:\/\/us.misumi-ec.com\/service\/info\/help-center\/help-center.html\" title=\"\">contact <\/a>our engineers and product specialists with any questions you have about the best socket head cap screw for your next project.<\/p>\n\n\n\n<p>Author: <a href=\"https:\/\/us.misumi-ec.com\/blog\/author\/sbredemann\/\" title=\"\">Scott Bredemann<\/a> | Updated: 4\/14\/2025<\/p>\n\n\n\n<p class=\"has-small-font-size\"><strong>Disclaimer:<br><\/strong>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>Metric socket head cap screws (also known as Allen head screws) are precision fasteners. These fasteners are characterized by their cylindrical head with a recessed hexagonal socket, which allows for high torque application in confined spaces where traditional external drive screws cannot be used. The table provides standard dimensions for metric socket head cap screws according to ISO specifications. All [&hellip;]<\/p>\n","protected":false},"author":70,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.misumiusa.com\/wp-json\/wp\/v2\/pages\/14775"}],"collection":[{"href":"https:\/\/blog.misumiusa.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blog.misumiusa.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blog.misumiusa.com\/wp-json\/wp\/v2\/users\/70"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.misumiusa.com\/wp-json\/wp\/v2\/comments?post=14775"}],"version-history":[{"count":5,"href":"https:\/\/blog.misumiusa.com\/wp-json\/wp\/v2\/pages\/14775\/revisions"}],"predecessor-version":[{"id":14799,"href":"https:\/\/blog.misumiusa.com\/wp-json\/wp\/v2\/pages\/14775\/revisions\/14799"}],"wp:attachment":[{"href":"https:\/\/blog.misumiusa.com\/wp-json\/wp\/v2\/media?parent=14775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}