{"id":17000,"date":"2026-06-02T10:26:59","date_gmt":"2026-06-02T15:26:59","guid":{"rendered":"https:\/\/blog.misumiusa.com\/?p=17000"},"modified":"2026-06-05T12:53:14","modified_gmt":"2026-06-05T17:53:14","slug":"u-bolt-size-chart","status":"publish","type":"post","link":"https:\/\/blog.misumiusa.com\/u-bolt-size-chart\/","title":{"rendered":"U-Bolt Size Chart"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">This chart provides common U-bolt dimensions by nominal pipe size and uses lettered measurements that correspond to the diagram below. When selecting a U-bolt, the goal is not just to match the pipe size, but to confirm that the usable dimensions work for the specific pipe, bracket, plate, or mounting surface in the assembly.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.misumiusa.com\/wp-content\/uploads\/2026\/06\/ubolt-size-image12.jpg\" alt=\"\" class=\"wp-image-17002\" width=\"204\" height=\"239\"\/><\/figure>\n\n\n\n<div class=\"misumi-ubolt-table-wrap\">\n  <style>\n    .misumi-ubolt-table-wrap {\n      width: 100%;\n      overflow-x: auto;\n      margin: 20px 0;\n      font-family: Arial, Helvetica, sans-serif;\n    }\n\n    .misumi-ubolt-table-wrap table {\n      width: 100%;\n      border-collapse: collapse;\n      border: 1px solid #111111;\n      background-color: #ffffff;\n      color: #111111;\n      font-size: 15px;\n      line-height: 1.4;\n    }\n\n    .misumi-ubolt-table-wrap th {\n      background-color: #005BAC;\n      color: #ffffff;\n      padding: 12px 10px;\n      text-align: left;\n      border: 1px solid #111111;\n      font-weight: 700;\n      white-space: nowrap;\n    }\n\n    .misumi-ubolt-table-wrap td {\n      padding: 10px;\n      border: 1px solid #d9d9d9;\n      vertical-align: middle;\n      white-space: nowrap;\n    }\n\n    .misumi-ubolt-table-wrap tbody tr:nth-child(even) {\n      background-color: #f7f7f7;\n    }\n\n    .misumi-ubolt-table-wrap tbody tr:hover {\n      background-color: #FFD100;\n      color: #111111;\n      transition: background-color 0.2s ease-in-out;\n    }\n\n    @media screen and (max-width: 768px) {\n      .misumi-ubolt-table-wrap table {\n        font-size: 14px;\n      }\n\n      .misumi-ubolt-table-wrap th,\n      .misumi-ubolt-table-wrap td {\n        padding: 9px 8px;\n      }\n    }\n  <\/style>\n\n  <table>\n    <thead>\n      <tr>\n        <th>Nominal Pipe Size<\/th>\n        <th>Inside Width (A)<\/th>\n        <th>Inside Length (C)<\/th>\n        <th>Thread Diameter (D)<\/th>\n        <th>Thread Length (B)<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr><td>1\/4 in.<\/td><td>5\/8 in.<\/td><td>1-3\/4 in.<\/td><td>1\/4 in.<\/td><td>3\/4 in.<\/td><\/tr>\n      <tr><td>3\/8 in.<\/td><td>3\/4 in.<\/td><td>2 in.<\/td><td>1\/4 in.<\/td><td>3\/4 in.<\/td><\/tr>\n      <tr><td>1\/2 in.<\/td><td>7\/8 in.<\/td><td>2-1\/4 in.<\/td><td>1\/4 in.<\/td><td>3\/4 in.<\/td><\/tr>\n      <tr><td>3\/4 in.<\/td><td>1-1\/8 in.<\/td><td>2-1\/2 in.<\/td><td>5\/16 in.<\/td><td>7\/8 in.<\/td><\/tr>\n      <tr><td>1 in.<\/td><td>1-3\/8 in.<\/td><td>2-3\/4 in.<\/td><td>5\/16 in.<\/td><td>7\/8 in.<\/td><\/tr>\n      <tr><td>1-1\/4 in.<\/td><td>1-3\/4 in.<\/td><td>3 in.<\/td><td>3\/8 in.<\/td><td>1 in.<\/td><\/tr>\n      <tr><td>1-1\/2 in.<\/td><td>2 in.<\/td><td>3-1\/4 in.<\/td><td>3\/8 in.<\/td><td>1 in.<\/td><\/tr>\n      <tr><td>2 in.<\/td><td>2-1\/2 in.<\/td><td>3-3\/4 in.<\/td><td>3\/8 in.<\/td><td>1 in.<\/td><\/tr>\n      <tr><td>2-1\/2 in.<\/td><td>3 in.<\/td><td>4-1\/4 in.<\/td><td>1\/2 in.<\/td><td>1-1\/4 in.<\/td><\/tr>\n      <tr><td>3 in.<\/td><td>3-5\/8 in.<\/td><td>4-3\/4 in.<\/td><td>1\/2 in.<\/td><td>1-1\/4 in.<\/td><\/tr>\n      <tr><td>3-1\/2 in.<\/td><td>4-1\/8 in.<\/td><td>5-1\/4 in.<\/td><td>1\/2 in.<\/td><td>1-1\/4 in.<\/td><\/tr>\n      <tr><td>4 in.<\/td><td>4-5\/8 in.<\/td><td>5-3\/4 in.<\/td><td>1\/2 in.<\/td><td>1-1\/4 in.<\/td><\/tr>\n      <tr><td>5 in.<\/td><td>5-3\/4 in.<\/td><td>6-3\/4 in.<\/td><td>5\/8 in.<\/td><td>1-1\/2 in.<\/td><\/tr>\n      <tr><td>6 in.<\/td><td>6-3\/4 in.<\/td><td>7-3\/4 in.<\/td><td>5\/8 in.<\/td><td>1-1\/2 in.<\/td><\/tr>\n      <tr><td>8 in.<\/td><td>8-3\/4 in.<\/td><td>9-3\/4 in.<\/td><td>3\/4 in.<\/td><td>1-3\/4 in.<\/td><\/tr>\n      <tr><td>10 in.<\/td><td>10-7\/8 in.<\/td><td>12 in.<\/td><td>3\/4 in.<\/td><td>1-3\/4 in.<\/td><\/tr>\n      <tr><td>12 in.<\/td><td>12-7\/8 in.<\/td><td>14 in.<\/td><td>7\/8 in.<\/td><td>2 in.<\/td><\/tr>\n      <tr><td>14 in.<\/td><td>14-1\/8 in.<\/td><td>15-1\/2 in.<\/td><td>7\/8 in.<\/td><td>2 in.<\/td><\/tr>\n      <tr><td>16 in.<\/td><td>16-1\/8 in.<\/td><td>17-1\/2 in.<\/td><td>1 in.<\/td><td>2-1\/4 in.<\/td><\/tr>\n      <tr><td>18 in.<\/td><td>18-1\/8 in.<\/td><td>19-1\/2 in.<\/td><td>1 in.<\/td><td>2-1\/4 in.<\/td><\/tr>\n      <tr><td>20 in.<\/td><td>20-1\/8 in.<\/td><td>21-1\/2 in.<\/td><td>1 in.<\/td><td>2-1\/2 in.<\/td><\/tr>\n      <tr><td>22 in.<\/td><td>22-1\/8 in.<\/td><td>23-1\/2 in.<\/td><td>1-1\/8 in.<\/td><td>2-1\/2 in.<\/td><\/tr>\n      <tr><td>24 in.<\/td><td>24-1\/8 in.<\/td><td>25-1\/2 in.<\/td><td>1-1\/8 in.<\/td><td>2-3\/4 in.<\/td><\/tr>\n      <tr><td>26 in.<\/td><td>26-1\/8 in.<\/td><td>27-1\/2 in.<\/td><td>1-1\/4 in.<\/td><td>2-3\/4 in.<\/td><\/tr>\n      <tr><td>28 in.<\/td><td>28-1\/8 in.<\/td><td>29-1\/2 in.<\/td><td>1-1\/4 in.<\/td><td>3 in.<\/td><\/tr>\n      <tr><td>30 in.<\/td><td>30-1\/8 in.<\/td><td>31-1\/2 in.<\/td><td>1-1\/4 in.<\/td><td>3 in.<\/td><\/tr>\n      <tr><td>32 in.<\/td><td>32-1\/8 in.<\/td><td>33-1\/2 in.<\/td><td>1-3\/8 in.<\/td><td>3-1\/4 in.<\/td><\/tr>\n      <tr><td>34 in.<\/td><td>34-1\/8 in.<\/td><td>35-1\/2 in.<\/td><td>1-3\/8 in.<\/td><td>3-1\/4 in.<\/td><\/tr>\n      <tr><td>36 in.<\/td><td>36-1\/8 in.<\/td><td>37-1\/2 in.<\/td><td>1-1\/2 in.<\/td><td>3-1\/2 in.<\/td><\/tr>\n      <tr><td>38 in.<\/td><td>38-1\/8 in.<\/td><td>39-1\/2 in.<\/td><td>1-1\/2 in.<\/td><td>3-1\/2 in.<\/td><\/tr>\n      <tr><td>40 in.<\/td><td>40-1\/8 in.<\/td><td>41-1\/2 in.<\/td><td>1-1\/2 in.<\/td><td>3-1\/2 in.<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<style>\n.u-bolts-cta {\n    display: inline-flex;\n    align-items: center;\n    padding: 8px 16px;\n    background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);\n    color: #003366;\n    text-decoration: none;\n    border-radius: 4px;\n    font-weight: 600;\n    font-size: 11px;\n    letter-spacing: 0.5px;\n    transition: all 0.3s ease;\n    box-shadow: 0 3px 8px rgba(255, 215, 0, 0.3);\n    border: 2px solid #0066CC;\n    cursor: pointer;\n    text-transform: uppercase;\n}\n\n.u-bolts-cta:hover {\n    background: linear-gradient(135deg, #FFC107 0%, #FFB300 100%);\n    border-color: #004499;\n    transform: translateY(-2px);\n    box-shadow: 0 4px 10px rgba(255, 215, 0, 0.4);\n}\n\n.u-bolts-cta:active {\n    transform: translateY(0);\n    box-shadow: 0 2px 6px rgba(255, 215, 0, 0.3);\n}\n\n.cta-icon {\n    margin-right: 5px;\n    font-size: 12px;\n}\n<\/style>\n\n<a href=\"https:\/\/us.misumi-ec.com\/vona2\/mech_screw\/M3301000000\/M3301220000\/\" class=\"u-bolts-cta\">\n    <span class=\"cta-icon\">\u2699<\/span>\n    Browse U-Bolts\n<\/a>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/us.misumi-ec.com\/\">MISUMI USA<\/a>\u00a0carries a wide range of\u00a0fasteners including screws, bolts, nuts,\u00a0threaded inserts, and more. If you have any questions about fastening concerns for your next project or fix, please feel free to contact our\u00a0<a href=\"https:\/\/us.misumi-ec.com\/service\/info\/help-center\/product-support.html\">product experts and engineers<\/a>. For more insights about u-bolts and other manufacturing related articles, be sure to check out articles like\u00a0<a href=\"https:\/\/us.misumi-ec.com\/blog\/industrial-fastener-selection-guide\/\">Industrial Fasteners Selection Guide<\/a>, <a href=\"https:\/\/us.misumi-ec.com\/blog\/what-are-u-bolts\/\" title=\"\">Quick Guide to U-Bolts<\/a>, and more.<\/p>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><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>This chart provides common U-bolt dimensions by nominal pipe size and uses lettered measurements that correspond to the diagram below. When selecting a U-bolt, the goal is not just to match the pipe size, but to confirm that the usable dimensions work for the specific pipe, bracket, plate, or mounting surface in the assembly. Nominal Pipe Size Inside Width (A) [&hellip;]<\/p>\n","protected":false},"author":70,"featured_media":17006,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1136],"tags":[622,8],"class_list":["post-17000","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mechanical-design","tag-bolts","tag-fasteners"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"This chart provides common U-bolt dimensions by nominal pipe size and uses lettered measurements that correspond to the diagram below. When selecting a U-bolt, the goal is not just to match the pipe size, but to confirm that the usable dimensions work for the specific pipe, bracket, plate, or mounting surface in the assembly. 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