{"id":2517,"date":"2026-04-18T03:33:37","date_gmt":"2026-04-18T03:33:37","guid":{"rendered":"https:\/\/staging.unitedsteelandfasteners.com\/?page_id=2517"},"modified":"2026-04-18T04:44:41","modified_gmt":"2026-04-18T04:44:41","slug":"bolt-torque-calculator","status":"publish","type":"page","link":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/bolt-torque-calculator\/","title":{"rendered":"Bolt Torque Calculator"},"content":{"rendered":"\n<div style=\"max-width:600px;margin:40px auto;padding:25px;background:#f8f8f8;border-radius:6px;\">\n    <h2 style=\"text-align:center;margin-bottom:20px;\">Bolt Torque Calculator<\/h2>\n\n    <label>Bolt Diameter (inches)<\/label>\n    <select id=\"diameter\" style=\"width:100%;padding:10px;margin-bottom:15px;\">\n        <option value=\"0.375\">3\/8&#8243;<\/option>\n        <option value=\"0.5\">1\/2&#8243;<\/option>\n        <option value=\"0.625\">5\/8&#8243;<\/option>\n        <option value=\"0.75\">3\/4&#8243;<\/option>\n        <option value=\"0.875\">7\/8&#8243;<\/option>\n        <option value=\"1\">1&#8243;<\/option>\n    <\/select>\n\n    <label>Grade<\/label>\n    <select id=\"grade\" style=\"width:100%;padding:10px;margin-bottom:15px;\">\n        <option value=\"2\">Grade 2<\/option>\n        <option value=\"5\">Grade 5<\/option>\n        <option value=\"8\">Grade 8<\/option>\n        <option value=\"A325\">A325<\/option>\n        <option value=\"A490\">A490<\/option>\n    <\/select>\n\n    <label>Condition<\/label>\n    <select id=\"condition\" style=\"width:100%;padding:10px;margin-bottom:20px;\">\n        <option value=\"0.2\">Plain<\/option>\n        <option value=\"0.3\">Galvanized<\/option>\n        <option value=\"0.15\">Lubricated<\/option>\n    <\/select>\n\n    <button onclick=\"calculateTorque()\" style=\"width:100%;padding:12px;background:#0073e6;color:#fff;border:none;border-radius:4px;\">\n        Calculate\n    <\/button>\n\n    <h3 id=\"result\" style=\"text-align:center;margin-top:20px;\"><\/h3>\n<\/div>\n\n<script>\nfunction calculateTorque() {\n    const D = parseFloat(document.getElementById(\"diameter\").value);\n    const grade = document.getElementById(\"grade\").value;\n    const K = parseFloat(document.getElementById(\"condition\").value);\n\n    \/\/ Clamp load approximation by grade (lbs)\n    let P;\n    switch(grade) {\n        case \"2\": P = 6000 * D * D; break;\n        case \"5\": P = 8500 * D * D; break;\n        case \"8\": P = 12000 * D * D; break;\n        case \"A325\": P = 9000 * D * D; break;\n        case \"A490\": P = 12000 * D * D; break;\n    }\n\n    \/\/ Torque formula\n    let T = (K * D * P) \/ 12;\n\n    document.getElementById(\"result\").innerHTML = \n        \"Estimated Torque: <strong>\" + Math.round(T) + \" ft-lbs<\/strong>\";\n}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Bolt Torque Calculator Bolt Diameter (inches) 3\/8&#8243;1\/2&#8243;5\/8&#8243;3\/4&#8243;7\/8&#8243;1&#8243; Grade Grade 2Grade 5Grade 8A325A490 Condition PlainGalvanizedLubricated Calculate<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-2517","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/wp-json\/wp\/v2\/pages\/2517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/wp-json\/wp\/v2\/comments?post=2517"}],"version-history":[{"count":2,"href":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/wp-json\/wp\/v2\/pages\/2517\/revisions"}],"predecessor-version":[{"id":2528,"href":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/wp-json\/wp\/v2\/pages\/2517\/revisions\/2528"}],"wp:attachment":[{"href":"https:\/\/staging.unitedsteelandfasteners.com\/index.php\/wp-json\/wp\/v2\/media?parent=2517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}