{"id":5440,"date":"2026-05-12T13:57:19","date_gmt":"2026-05-12T05:57:19","guid":{"rendered":"https:\/\/xzfastener.com\/?post_type=product&#038;p=5440"},"modified":"2026-05-12T13:57:19","modified_gmt":"2026-05-12T05:57:19","slug":"high-strength-left-hand-hex-bolts-grade-12-9-metric-thread-fasteners-pack-of-10-heavy-duty-mechanical-assembly","status":"publish","type":"product","link":"https:\/\/xzfastener.com\/fr\/products\/high-strength-left-hand-hex-bolts-grade-12-9-metric-thread-fasteners-pack-of-10-heavy-duty-mechanical-assembly\/","title":{"rendered":"Boulons hexagonaux gauche haute r\u00e9sistance Grade 12.9 | Attaches \u00e0 filetage m\u00e9trique Pack de 10 | Assemblage m\u00e9canique robuste"},"content":{"rendered":"<h2 data-section-id=\"1bw7wp4\" data-start=\"241\" data-end=\"263\">Description du produit<\/h2>\n<h3 data-section-id=\"1n8lizy\" data-start=\"265\" data-end=\"285\">Pr\u00e9sentation du produit<\/h3>\n<p data-start=\"286\" data-end=\"812\">Ces <strong data-start=\"292\" data-end=\"329\">High-Strength Left-Hand Hex Bolts<\/strong> are designed for demanding mechanical and industrial applications where reverse threading is required. Made from premium Grade 12.9 steel, these bolts offer exceptional tensile strength, durability, and resistance to wear and deformation. The hex head design ensures easy installation with standard wrenches or socket tools, making them ideal for automotive, machinery, and industrial assembly. Each pack contains 10 bolts, perfect for repair, maintenance, or heavy-duty projects.<\/p>\n<hr data-start=\"814\" data-end=\"817\" \/>\n<h3 data-section-id=\"1iz91iu\" data-start=\"819\" data-end=\"835\">Principales fonctionnalit\u00e9s<\/h3>\n<ul data-start=\"836\" data-end=\"1431\">\n<li data-section-id=\"4hyk08\" data-start=\"836\" data-end=\"968\"><strong data-start=\"838\" data-end=\"858\">Mat\u00e9riau haut de gamme<\/strong>: Manufactured from high-strength Grade 12.9 steel for superior load-bearing capacity and long service life.<\/li>\n<li data-section-id=\"pspnhk\" data-start=\"969\" data-end=\"1091\"><strong data-start=\"971\" data-end=\"991\">Left-Hand Thread<\/strong>: Ideal for applications requiring reverse threading to prevent loosening under rotational forces.<\/li>\n<li data-section-id=\"4wug47\" data-start=\"1092\" data-end=\"1201\"><strong data-start=\"1094\" data-end=\"1113\">Conception \u00e0 t\u00eate hexagonale<\/strong>: Compatible with standard hand tools, wrenches, or socket sets for easy installation.<\/li>\n<li data-section-id=\"96ctcj\" data-start=\"1202\" data-end=\"1344\"><strong data-start=\"1204\" data-end=\"1230\">Heavy-Duty Performance<\/strong>: Withstands high torque and mechanical stress, suitable for industrial, automotive, and machinery applications.<\/li>\n<li data-section-id=\"rithz5\" data-start=\"1345\" data-end=\"1431\"><strong data-start=\"1347\" data-end=\"1361\">Pack of 10<\/strong>: Convenient quantity for repair, maintenance, or assembly projects.<\/li>\n<\/ul>\n<hr data-start=\"1433\" data-end=\"1436\" \/>\n<h3 data-section-id=\"1vaeinq\" data-start=\"1438\" data-end=\"1462\">Tableau des sp\u00e9cifications<\/h3>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"1464\" data-end=\"2134\">\n<thead data-start=\"1464\" data-end=\"1539\">\n<tr data-start=\"1464\" data-end=\"1539\">\n<th class=\"last:pe-10\" data-start=\"1464\" data-end=\"1486\" data-col-size=\"sm\">Sp\u00e9cification<\/th>\n<th class=\"last:pe-10\" data-start=\"1486\" data-end=\"1539\" data-col-size=\"md\">D\u00e9tails<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1613\" data-end=\"2134\">\n<tr data-start=\"1613\" data-end=\"1686\">\n<td data-start=\"1613\" data-end=\"1634\" data-col-size=\"sm\">Mat\u00e9riel<\/td>\n<td data-col-size=\"md\" data-start=\"1634\" data-end=\"1686\">Grade 12.9 High-Strength Steel<\/td>\n<\/tr>\n<tr data-start=\"1687\" data-end=\"1761\">\n<td data-start=\"1687\" data-end=\"1708\" data-col-size=\"sm\">Type de filetage<\/td>\n<td data-col-size=\"md\" data-start=\"1708\" data-end=\"1761\">Left-Hand Metric Thread<\/td>\n<\/tr>\n<tr data-start=\"1762\" data-end=\"1835\">\n<td data-start=\"1762\" data-end=\"1783\" data-col-size=\"sm\">Type de t\u00eate de boulon<\/td>\n<td data-col-size=\"md\" data-start=\"1783\" data-end=\"1835\">Hexagonale<\/td>\n<\/tr>\n<tr data-start=\"1836\" data-end=\"1909\">\n<td data-start=\"1836\" data-end=\"1857\" data-col-size=\"sm\">Finition de surface<\/td>\n<td data-col-size=\"md\" data-start=\"1857\" data-end=\"1909\">Black Oxide \/ Coated for Corrosion Resistance<\/td>\n<\/tr>\n<tr data-start=\"1910\" data-end=\"1983\">\n<td data-start=\"1910\" data-end=\"1931\" data-col-size=\"sm\">Quantit\u00e9 de colis<\/td>\n<td data-col-size=\"md\" data-start=\"1931\" data-end=\"1983\">10 pi\u00e8ces<\/td>\n<\/tr>\n<tr data-start=\"1984\" data-end=\"2058\">\n<td data-start=\"1984\" data-end=\"2005\" data-col-size=\"sm\">Outils recommand\u00e9s<\/td>\n<td data-col-size=\"md\" data-start=\"2005\" data-end=\"2058\">Cl\u00e9, douille, cl\u00e9 dynamom\u00e9trique<\/td>\n<\/tr>\n<tr data-start=\"2059\" data-end=\"2134\">\n<td data-start=\"2059\" data-end=\"2080\" data-col-size=\"sm\">Applications<\/td>\n<td data-col-size=\"md\" data-start=\"2080\" data-end=\"2134\">Automotive, Industrial, Machinery, Heavy Equipment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"2136\" data-end=\"2139\" \/>\n<h3 data-section-id=\"wggvqn\" data-start=\"2141\" data-end=\"2157\">Applications<\/h3>\n<ol data-start=\"2158\" data-end=\"2578\">\n<li data-section-id=\"1q7htmw\" data-start=\"2158\" data-end=\"2248\"><strong data-start=\"2161\" data-end=\"2175\">Automobile<\/strong>: Securing rotating parts such as crankshafts, pulleys, and wheel hubs.<\/li>\n<li data-section-id=\"11dyhpt\" data-start=\"2249\" data-end=\"2370\"><strong data-start=\"2252\" data-end=\"2276\">Machines industrielles<\/strong>: Equipment requiring reverse-thread bolts to prevent loosening under vibration or rotation.<\/li>\n<li data-section-id=\"1waj2z2\" data-start=\"2371\" data-end=\"2472\"><strong data-start=\"2374\" data-end=\"2397\">Heavy-Duty Projects<\/strong>: Construction machinery, agricultural tools, or manufacturing equipment.<\/li>\n<li data-section-id=\"1mumvsl\" data-start=\"2473\" data-end=\"2578\"><strong data-start=\"2476\" data-end=\"2500\">Repair &amp; Maintenance<\/strong>: Ensures secure fastening in high-stress and torque-intensive environments.<\/li>\n<\/ol>\n<hr data-start=\"2580\" data-end=\"2583\" \/>\n<h3 data-section-id=\"8yg16z\" data-start=\"2585\" data-end=\"2621\">FAQ (Foire aux questions)<\/h3>\n<p data-start=\"2623\" data-end=\"2833\"><strong data-start=\"2623\" data-end=\"2679\">Q1: What is the advantage of left-hand thread bolts?<\/strong><br data-start=\"2679\" data-end=\"2682\" \/>A1: Left-hand threads tighten counterclockwise, preventing loosening in applications where rotational forces could unscrew standard right-hand bolts.<\/p>\n<p data-start=\"2835\" data-end=\"2998\"><strong data-start=\"2835\" data-end=\"2878\">Q2: Can these bolts handle heavy loads?<\/strong><br data-start=\"2878\" data-end=\"2881\" \/>A2: Yes, Grade 12.9 steel provides exceptional tensile strength, making them suitable for high-stress applications.<\/p>\n<p data-start=\"3000\" data-end=\"3145\"><strong data-start=\"3000\" data-end=\"3048\">Q3 : Sont-ils compatibles avec les \u00e9crous standard ?<\/strong><br data-start=\"3048\" data-end=\"3051\" \/>A3: Use matching left-hand threaded nuts of the same metric size to ensure proper fastening.<\/p>\n<p data-start=\"3147\" data-end=\"3347\"><strong data-start=\"3147\" data-end=\"3201\">Q4: How should I properly install these hex bolts?<\/strong><br data-start=\"3201\" data-end=\"3204\" \/>A4: Use a suitable wrench or torque wrench, turning counterclockwise to tighten. Follow recommended torque values to prevent over-tightening.<\/p>","protected":false},"excerpt":{"rendered":"<p>Product Description Product Overview These High-Strength Left-Hand Hex Bolts are designed for demanding mechanical and industrial applications where reverse threading is required. Made from premium Grade 12.9 steel, these bolts offer exceptional tensile strength, durability, and resistance to wear and deformation. The hex head design ensures easy installation with standard wrenches or socket tools, making [&hellip;]<\/p>\n","protected":false},"featured_media":5441,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"fastener-coating":[142,34,150,95,37,94],"fastener-material":[288,42],"fastener-type":[53,474],"product_brand":[],"product_cat":[22],"product_tag":[],"class_list":{"0":"post-5440","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"fastener-coating-black-oxide","7":"fastener-coating-blackening","8":"fastener-coating-custom-color-coating","9":"fastener-coating-natural-finish","10":"fastener-coating-original-material","11":"fastener-coating-original-material-natural-finish","12":"fastener-material-alloy-steel","13":"fastener-material-carbon-steel","14":"fastener-type-bolts","15":"fastener-type-hex-head-bolt","16":"product_cat-standard-fasteners","18":"first","19":"instock","20":"shipping-taxable","21":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/product\/5440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/comments?post=5440"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/product\/5440\/revisions"}],"predecessor-version":[{"id":5442,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/product\/5440\/revisions\/5442"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/media\/5441"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/media?parent=5440"}],"wp:term":[{"taxonomy":"fastener-coating","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/fastener-coating?post=5440"},{"taxonomy":"fastener-material","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/fastener-material?post=5440"},{"taxonomy":"fastener-type","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/fastener-type?post=5440"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/product_brand?post=5440"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/product_cat?post=5440"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/product_tag?post=5440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}