{"id":100041,"date":"2026-02-15T20:07:55","date_gmt":"2026-02-15T20:07:55","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100041"},"modified":"2026-07-11T21:31:49","modified_gmt":"2026-07-11T21:31:49","slug":"bolt-strength-calculator","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/ar\/calculators\/bolt-strength-calculator\/","title":{"rendered":"\u062d\u0627\u0633\u0628\u0629 \u062d\u0645\u0644 \u0645\u0633\u0627\u062d\u0629 \u0627\u0644\u0625\u062c\u0647\u0627\u062f \u0627\u0644\u0645\u062d\u0648\u0631\u064a \u0644\u0644\u0645\u0633\u0645\u0627\u0631"},"content":{"rendered":"\r\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Bolt Axial Stress-Area Load Calculator\",\"description\":\"Multiply user-supplied tensile stress area by user-supplied ultimate and reference axial stresses. No shear or code design resistance is generated.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/bolt-strength-calculator\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"dateModified\":\"2026-07-11\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true}<\/script>\r\n\r\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does ISO 898-1 specify bolt shear strength?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Its official scope explicitly excludes requirements for shear resistance. This page therefore generates no shear capacity.\"}},{\"@type\":\"Question\",\"name\":\"Are the displayed loads design resistances?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. They are products of user-entered stress and tensile stress area, without joint geometry, partial factors, fatigue, bearing, slip, tear-out, interaction or connection-code checks.\"}},{\"@type\":\"Question\",\"name\":\"Where should the inputs come from?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use the current applicable fastener\/thread standard, verified manufacturer data or a material certificate for the exact diameter, pitch, property class, temperature and product geometry.\"}}]}<\/script>\r\n\r\n<script type=\"application\/ld+json\">\r\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[\r\n{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vibromera.eu\/\"},\r\n{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calculators\",\"item\":\"https:\/\/vibromera.eu\/calculators\/\"},\r\n{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Bolt Strength Calculator\",\"item\":\"https:\/\/vibromera.eu\/calculators\/bolt-strength-calculator\/\"}\r\n]}\r\n<\/script>\r\n\r\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\r\n\r\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\r\n\r\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&#038;family=JetBrains+Mono:wght@400;500;600&#038;family=Fraunces:opsz,wght@9..144,700;9..144,800&#038;display=swap\" rel=\"stylesheet\">\r\n\r\n<link rel=\"stylesheet\" href=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.css\">\r\n\r\n<style>\r\n:root {\r\n    --vc-bg: #f4f1ec;\r\n    --vc-surface: #ffffff;\r\n    --vc-surface-alt: #f8f6f2;\r\n    --vc-ink: #1a1a1a;\r\n    --vc-ink-secondary: #5a5650;\r\n    --vc-ink-muted: #8a857e;\r\n    --vc-accent: #c85a2a;\r\n    --vc-accent-hover: #b04d22;\r\n    --vc-accent-light: #fdf0ea;\r\n    --vc-blue: #2a5c8c;\r\n    --vc-blue-light: #eaf1f8;\r\n    --vc-green: #2a7a4b;\r\n    --vc-green-light: #eaf8ef;\r\n    --vc-yellow: #a67c00;\r\n    --vc-yellow-light: #fef9e8;\r\n    --vc-red: #b91c1c;\r\n    --vc-red-light: #fef2f2;\r\n    --vc-border: #d9d4cc;\r\n    --vc-border-light: #e8e4dd;\r\n    --vc-shadow: 0 1px 3px rgba(26,26,26,0.06), 0 4px 12px rgba(26,26,26,0.04);\r\n    --vc-shadow-lg: 0 4px 12px rgba(26,26,26,0.08), 0 16px 40px rgba(26,26,26,0.06);\r\n    --vc-radius: 8px;\r\n    --vc-radius-lg: 12px;\r\n    --vc-font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;\r\n    --vc-mono: 'JetBrains Mono', 'Consolas', 'Monaco', monospace;\r\n    --vc-display: 'Fraunces', Georgia, serif;\r\n}\r\n.vc-calculator { font-family: var(--vc-font); 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} .vc-footer a:hover { text-decoration:underline; }\r\n.vc-footer-links { margin-top:8px; font-size:12px; } .vc-footer-links a { margin:0 8px; }\r\n@media print {\r\n    .vc-section-body { max-height:none!important; } .vc-faq-a { max-height:none!important; }\r\n    .vc-results { max-height:none!important; padding:24px!important; }\r\n    .vc-copy-btn, .vc-section-chevron, .vc-faq-chevron, .vc-presets, .vc-promo { display:none!important; }\r\n}\r\n<\/style>\r\n\r\n<div class=\"vc-calculator\" id=\"vc-bolt-strength\">\r\n\r\n<header class=\"vc-header\"><p class=\"vc-header-eyebrow\">Scoped Engineering Calculation<\/p><h1 class=\"vc-header-title\">Bolt Axial Stress-Area Loads<\/h1><p class=\"vc-header-subtitle\">Calculate F=\u03c3\u00b7As for user-supplied ultimate and reference axial stresses. No shear capacity or design resistance is inferred.<\/p><div class=\"vc-badges\"><span class=\"vc-badge\">User-Supplied As<\/span><span class=\"vc-badge\">Axial Products Only<\/span><span class=\"vc-badge\">No 0.6 Shear Shortcut<\/span><\/div><\/header>\r\n\r\n<div class=\"vc-card\"><form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\"><div class=\"vc-form-grid\"><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-area\">Tensile stress area A<sub>s<\/sub> <span class=\"vc-label-hint\">(mm\u00b2)<\/span><\/label><input class=\"vc-input\" type=\"text\" id=\"vc-area\" inputmode=\"decimal\" value=\"58\"><\/div><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-ultimate\">Ultimate tensile strength R<sub>m<\/sub> <span class=\"vc-label-hint\">(MPa)<\/span><\/label><input class=\"vc-input\" type=\"text\" id=\"vc-ultimate\" inputmode=\"decimal\" value=\"800\"><\/div><div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-reference\">Other axial reference stress \u03c3<sub>ref<\/sub> <span class=\"vc-label-hint\">(MPa; proof\/yield\/design as sourced)<\/span><\/label><input class=\"vc-input\" type=\"text\" id=\"vc-reference\" inputmode=\"decimal\" value=\"640\"><\/div><\/div><div class=\"vc-warning-box\"><p style=\"margin:0\"><strong>Not a connection check:<\/strong> these are axial stress-area products, not allowable loads or shear resistance. Verify fastener geometry, mating threads, head\/bearing capacity, joint separation, fatigue, temperature and every applicable code factor.<\/p><\/div><\/form><div class=\"vc-results\" id=\"vc-results\"><div class=\"vc-results-head\"><h2 class=\"vc-results-title\">Axial reference products<\/h2><button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\">Copy<\/button><\/div><div class=\"vc-result-grid\"><div class=\"vc-rcard vc-rcard-primary\"><div class=\"vc-rcard-label\">Ultimate stress-area product Rm\u00b7As<\/div><div class=\"vc-rcard-value\" id=\"vc-r-ultimate\">\u2014<\/div><\/div><div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Other reference product \u03c3ref\u00b7As<\/div><div class=\"vc-rcard-value\" id=\"vc-r-reference\">\u2014<\/div><\/div><div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Reference\/ultimate stress ratio<\/div><div class=\"vc-rcard-value\" id=\"vc-r-ratio\">\u2014<\/div><\/div><div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Tensile stress area<\/div><div class=\"vc-rcard-value\" id=\"vc-r-area\">\u2014<\/div><\/div><\/div><\/div><\/div>\r\n\r\n<div class=\"vc-section vc-open\" id=\"vc-sec-theory\"><button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Equation and applicability<\/span><\/span><\/button><div class=\"vc-section-body\"><div class=\"vc-section-inner vc-theory\"><h3>Axial products<\/h3><div class=\"vc-formula-box\">F<sub>u,ref<\/sub>=R<sub>m<\/sub>A<sub>s<\/sub>; &nbsp; F<sub>other,ref<\/sub>=\u03c3<sub>ref<\/sub>A<sub>s<\/sub><\/div><p>MPa is N\/mm\u00b2, so each product is in newtons. \u201cUltimate product\u201d is not a guaranteed specimen result or design resistance; the entered Rm and As must match the exact fastener and applicable source.<\/p><h3>ISO 898-1 scope<\/h3><p><a href=\"https:\/\/www.iso.org\/standard\/60610.html\" target=\"_blank\" rel=\"noopener\">ISO 898-1:2013<\/a>, confirmed in 2025 and marked for revision, covers specified mechanical\/physical properties for carbon\/alloy-steel metric fasteners M1.6\u2013M39 at 10\u201335 \u00b0C. It explicitly excludes requirements for shear resistance, fatigue and torque\/clamp performance. The previous M3\u2013M64 property-class lookup and \u201c0.6 shear capacity\u201d have therefore been removed.<\/p><h3>Why double shear is not just a selector<\/h3><p>Connection resistance depends on whether each plane crosses threads or shank, actual shear area, material model, bearing and tear-out of connected parts, slip, eccentricity, load sharing, combined tension\/shear, fatigue and the governing code. A generic 0.6RmAs multiplied by plane count cannot establish capacity.<\/p><div class=\"vc-info-box\"><p><strong>Inputs:<\/strong> obtain As, Rm and the chosen reference stress from the current licensed standard, verified manufacturer data or material certificate for the exact diameter, pitch, property class, product geometry and temperature.<\/p><\/div><\/div><\/div><\/div>\r\n\r\n<div class=\"vc-section\" id=\"vc-sec-related\">\r\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\r\n        <span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udd17<\/span><span class=\"vc-section-title\">Related Calculators<\/span><\/span>\r\n        <svg class=\"vc-section-chevron\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\r\n    <\/button>\r\n    <div class=\"vc-section-body\">\r\n        <div class=\"vc-section-inner\">\r\n            <div class=\"vc-related\">\r\n                <a class=\"vc-related-link\" href=\"\/calculators\/bolt-preload-calculator\/\">Bolt Preload Calculator<\/a>\r\n                <a class=\"vc-related-link\" href=\"\/calculators\/flange-bolt-calculator\/\">Flange Bolt Calculator<\/a>\r\n                <a class=\"vc-related-link\" href=\"\/calculators\/bolt-dimensions-weight\/\">Bolt Dimensions &amp; Weight<\/a>\r\n                <a class=\"vc-related-link\" href=\"\/calculators\/stud-bolt-torque\/\">Stud Bolt Torque<\/a>\r\n                <a class=\"vc-related-link\" href=\"\/calculators\/rivet-joint-calculator\/\">Rivet Joint Calculator<\/a>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n<!-- FAQ -->\r\n<div class=\"vc-section\" id=\"vc-sec-faq\">\r\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\r\n        <span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span>\r\n        <svg class=\"vc-section-chevron\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\r\n    <\/button>\r\n    <div class=\"vc-section-body\">\r\n        <div class=\"vc-section-inner\">\r\n            <div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n<div class=\"vc-promo\">\r\n    <div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional field balancing instruments and software. Used in 50+ countries.<\/div>\r\n    <a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a>\r\n<\/div>\r\n\r\n<footer class=\"vc-footer\"><p>\u00a9 2024\u20132026 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> \u2014 Engineering Calculators<\/p><p style=\"font-size:12px;margin-top:4px\">Axial stress-area products only; no ISO shear capacity or design resistance. Scientific review: July 2026.<\/p><\/footer>\r\n\r\n<\/div>\r\n\r\n<script>(function(){'use strict';function $(id){return document.getElementById(id)}function parsePositive(raw){var s=String(raw).trim().replace(\/\\s+\/g,'');if(!\/^[+]?(?:\\d+(?:[.,]\\d*)?|[.,]\\d+)$\/.test(s))return NaN;var n=Number(s.replace(',','.'));return Number.isFinite(n)&&n>0?n:NaN}function fmt(n,d){return Number.isFinite(n)?n.toFixed(d).replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,''):'\u2014'}function calculate(){var As=parsePositive($('vc-area').value),Rm=parsePositive($('vc-ultimate').value),ref=parsePositive($('vc-reference').value);if(![As,Rm,ref].every(Number.isFinite)){$('vc-results').classList.remove('vc-visible');return}var Fu=As*Rm,Fr=As*ref,ratio=100*ref\/Rm;if(![Fu,Fr,ratio].every(Number.isFinite)){$('vc-results').classList.remove('vc-visible');return}$('vc-r-ultimate').innerHTML=fmt(Fu\/1000,6)+' <span class=\"vc-rcard-unit\">kN ('+fmt(Fu,3)+' N)<\/span>';$('vc-r-reference').innerHTML=fmt(Fr\/1000,6)+' <span class=\"vc-rcard-unit\">kN<\/span>';$('vc-r-ratio').innerHTML=fmt(ratio,6)+'<span class=\"vc-rcard-unit\">%<\/span>';$('vc-r-area').innerHTML=fmt(As,6)+' <span class=\"vc-rcard-unit\">mm\u00b2<\/span>';$('vc-results').classList.add('vc-visible');var u=new URL(location);u.searchParams.set('stress_area',As);u.searchParams.set('ultimate_stress',Rm);u.searchParams.set('reference_stress',ref);history.replaceState(null,'',u.toString())}$('vc-form').addEventListener('input',calculate);$('vc-form').addEventListener('change',calculate);$('vc-copy-btn').addEventListener('click',function(){var t='Bolt axial stress-area products\\nAs='+$('vc-area').value+' mm\u00b2\\nRm='+$('vc-ultimate').value+' MPa\\nReference stress='+$('vc-reference').value+' MPa\\nUltimate product='+$('vc-r-ultimate').textContent+'\\nOther product='+$('vc-r-reference').textContent+'\\nNo shear\/design resistance is calculated.';if(navigator.clipboard)navigator.clipboard.writeText(t)});document.querySelectorAll('.vc-section-toggle').forEach(function(b){b.addEventListener('click',function(){var s=this.closest('.vc-section');s.classList.toggle('vc-open');this.setAttribute('aria-expanded',s.classList.contains('vc-open'))})});var faqData=[{q:'Does ISO 898-1 define shear strength?',a:'<p>No. Its official scope excludes shear resistance requirements.<\/p>'},{q:'Are these allowable loads?',a:'<p>No. They are only products of entered axial stress and tensile stress area.<\/p>'},{q:'Where do inputs come from?',a:'<p>Use the exact current standard, verified manufacturer data or material certificate.<\/p>'}];var fl=$('vc-faq-list');faqData.forEach(function(f){fl.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+f.q+'<\/span><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+f.a+'<\/div><\/div><\/div>'});fl.addEventListener('click',function(e){var b=e.target.closest('.vc-faq-q');if(b)b.closest('.vc-faq-item').classList.toggle('vc-open')});function load(){var p=new URLSearchParams(location.search);if(p.has('stress_area'))$('vc-area').value=p.get('stress_area');if(p.has('ultimate_stress'))$('vc-ultimate').value=p.get('ultimate_stress');if(p.has('reference_stress'))$('vc-reference').value=p.get('reference_stress')}function init(){load();calculate()}if(document.readyState==='loading')document.addEventListener('DOMContentLoaded',init);else init()})();<\/script>\r\n","protected":false},"excerpt":{"rendered":"<p>Calculate axial stress-area products from user-supplied tensile area and stresses; no generic shear capacity or automatic ISO design resistance.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100041","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ar\/wp-json\/wp\/v2\/calculator\/100041","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ar\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/ar\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":3,"href":"https:\/\/vibromera.eu\/ar\/wp-json\/wp\/v2\/calculator\/100041\/revisions"}],"predecessor-version":[{"id":102332,"href":"https:\/\/vibromera.eu\/ar\/wp-json\/wp\/v2\/calculator\/100041\/revisions\/102332"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ar\/wp-json\/wp\/v2\/media?parent=100041"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ar\/wp-json\/wp\/v2\/categories?post=100041"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ar\/wp-json\/wp\/v2\/tags?post=100041"}],"curies":[{"name":"\u0648\u0648\u0631\u062f\u0628\u0631\u064a\u0633","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}