{"id":15931,"date":"2025-11-19T09:42:11","date_gmt":"2025-11-19T15:42:11","guid":{"rendered":"https:\/\/blog.misumiusa.com\/?page_id=15931"},"modified":"2025-11-19T10:28:55","modified_gmt":"2025-11-19T16:28:55","slug":"allen-wrench-size-chart","status":"publish","type":"page","link":"https:\/\/us.misumi-ec.com\/blog\/allen-wrench-size-chart\/","title":{"rendered":"Allen Wrench Size Chart (SAE to Metric)"},"content":{"rendered":"\n<p>Allen wrench sizes can be surprisingly easy to mix up, especially when you\u2019re moving between inch and metric fasteners. Having a clear size chart on hand saves time, prevents stripped sockets, and helps you choose the right tool the first time.<\/p>\n\n\n\n\n\n\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <title>Allen Wrench Size Chart<\/title>\n    <style>\n        .chart-container {\n            max-width: 800px;\n            margin: 0;\n            font-family: Arial, sans-serif;\n        }\n        \n        .chart-title {\n            background-color: #000;\n            color: #fff;\n            padding: 20px;\n            text-align: center;\n            font-size: 24px;\n            font-weight: bold;\n            margin: 0;\n        }\n        \n        .chart-table {\n            width: 100%;\n            border-collapse: collapse;\n            background-color: #fff;\n            box-shadow: 0 2px 4px rgba(0,0,0,0.1);\n        }\n        \n        .chart-table thead {\n            background-color: #0066cc;\n            color: #fff;\n        }\n        \n        .chart-table th {\n            padding: 15px;\n            text-align: left;\n            font-weight: bold;\n            border-bottom: 2px solid #000;\n        }\n        \n        .chart-table tbody tr {\n            border-bottom: 1px solid #e0e0e0;\n            transition: all 0.3s ease;\n        }\n        \n        .chart-table tbody tr:hover {\n            background-color: #ffeb3b;\n            transform: scale(1.02);\n            box-shadow: 0 4px 8px rgba(0,0,0,0.15);\n            cursor: pointer;\n        }\n        \n        .chart-table td {\n            padding: 12px 15px;\n            color: #000;\n        }\n        \n        .chart-table tbody tr:nth-child(even) {\n            background-color: #f8f8f8;\n        }\n        \n        .chart-table tbody tr:nth-child(even):hover {\n            background-color: #ffeb3b;\n        }\n        \n        .metric-col {\n            font-weight: 600;\n        }\n        \n        .imperial-col {\n            color: #0066cc;\n            font-weight: 600;\n        }\n    <\/style>\n\n\n    <div class=\"chart-container\">\n        <div class=\"chart-title\">Allen Wrench Size Chart<\/div>\n        <table class=\"chart-table\">\n            <thead>\n                <tr>\n                    <th>Metric (mm)<\/th>\n                    <th>Imperial (inch)<\/th>\n                    <th>Common Application<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td class=\"metric-col\">0.7 mm<\/td>\n                    <td class=\"imperial-col\">0.028&#8243;<\/td>\n                    <td>Precision instruments, eyeglasses<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">0.9 mm<\/td>\n                    <td class=\"imperial-col\">0.035&#8243;<\/td>\n                    <td>Small electronics, watches<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">1.5 mm<\/td>\n                    <td class=\"imperial-col\">1\/16&#8243;<\/td>\n                    <td>Small electronics, RC models<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">2.0 mm<\/td>\n                    <td class=\"imperial-col\">5\/64&#8243;<\/td>\n                    <td>Small appliances, fixtures<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">2.5 mm<\/td>\n                    <td class=\"imperial-col\">3\/32&#8243;<\/td>\n                    <td>Bicycles, small machinery<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">3.0 mm<\/td>\n                    <td class=\"imperial-col\">1\/8&#8243;<\/td>\n                    <td>Furniture, bicycles<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">4.0 mm<\/td>\n                    <td class=\"imperial-col\">5\/32&#8243;<\/td>\n                    <td>Power tools, bicycles<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">5.0 mm<\/td>\n                    <td class=\"imperial-col\">3\/16&#8243;<\/td>\n                    <td>Automotive, machinery<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">6.0 mm<\/td>\n                    <td class=\"imperial-col\">1\/4&#8243;<\/td>\n                    <td>Automotive, industrial equipment<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">8.0 mm<\/td>\n                    <td class=\"imperial-col\">5\/16&#8243;<\/td>\n                    <td>Heavy machinery, automotive<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">10.0 mm<\/td>\n                    <td class=\"imperial-col\">3\/8&#8243;<\/td>\n                    <td>Industrial machinery<\/td>\n                <\/tr>\n                <tr>\n                    <td class=\"metric-col\">12.0 mm<\/td>\n                    <td class=\"imperial-col\">1\/2&#8243;<\/td>\n                    <td>Heavy industrial applications<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\n\n\n\n\n\n<p><\/p>\n\n\n\n<p><a href=\"https:\/\/us.misumi-ec.com\/\">MISUMI USA<\/a> carries a wide range of <a href=\"https:\/\/us.misumi-ec.com\/vona2\/fs_processing\/T0600000000\/T0602000000\/v\">allen wrenches and hex keys<\/a>.  For more insights about allen wrenches, and other manufacturing related articles be sure to check out our <a href=\"https:\/\/us.misumi-ec.com\/blog\/\">blog<\/a>, and articles like &#8211; <a href=\"https:\/\/us.misumi-ec.com\/blog\/what-is-an-allen-wrench\/\" title=\"\">What is an Allen Wrench?<\/a>, <a href=\"https:\/\/us.misumi-ec.com\/blog\/7-quick-facts-about-allen-wrenches\/\" title=\"\">7 Quick Facts About Allen Wrenches<\/a> and more.<\/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\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Allen wrench sizes can be surprisingly easy to mix up, especially when you\u2019re moving between inch and metric fasteners. Having a clear size chart on hand saves time, prevents stripped sockets, and helps you choose the right tool the first time. Allen Wrench Size Chart Allen Wrench Size Chart Metric (mm) Imperial (inch) Common Application 0.7 mm 0.028&#8243; Precision instruments, [&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:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15931"}],"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=15931"}],"version-history":[{"count":5,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15931\/revisions"}],"predecessor-version":[{"id":15938,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15931\/revisions\/15938"}],"wp:attachment":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/media?parent=15931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}