{"id":636,"date":"2025-10-29T07:35:46","date_gmt":"2025-10-29T07:35:46","guid":{"rendered":"https:\/\/mj-anchor.com\/product\/galvanized-carbon-steel-hex-bolts\/"},"modified":"2025-10-31T02:51:15","modified_gmt":"2025-10-31T02:51:15","slug":"galvanized-carbon-steel-hex-bolts","status":"publish","type":"product","link":"https:\/\/mj-anchor.com\/fr\/product\/galvanized-carbon-steel-hex-bolts\/","title":{"rendered":"Galvanized carbon steel hex bolts"},"content":{"rendered":"<h4><strong>Crucial Clarifications on Product Specifications<\/strong><\/h4>\n<p>The product page contains several generic or conflicting data points. The following clarifications provide an accurate understanding of this specific product:<\/p>\n<ul>\n<li><strong>Material:<\/strong> The product is a <strong>Carbon Steel Hex Bolt<\/strong>. The zinc plating is a surface finish applied to the steel for protection. The mention of &#8220;Stainless Steel&#8221; in the material list is a template error and does not apply to this zinc-plated product.<\/li>\n<li><strong>Grade (Strength Class):<\/strong> The relevant property classes for this carbon steel bolt are <strong>4.8, 8.8, 10.9, and 12.9<\/strong>. These numbers indicate the mechanical strength of the bolt. The stainless steel grades (A2-70, A4-70, etc.) listed on the page are not applicable.<\/li>\n<li><strong>Finish (White Zinc Plating):<\/strong> The &#8220;White Zinc Plated&#8221; finish, also known as clear zinc or blue zinc, is an electroplated coating that provides a basic level of protection against rust in dry or low-moisture environments.<\/li>\n<li><strong>Measurement Systems &amp; Standards:<\/strong> The product page title mentions both Metric (DIN) and Imperial (UNF\/UNC, ANSI) standards, while the summary table specifies &#8220;Metric&#8221;. This indicates that Duojia likely manufactures these bolts to multiple international standards to serve a global market.\n<ul>\n<li><strong>Metric System (DIN):<\/strong> Typically refers to standards like DIN 933 (fully threaded) and DIN 931 (partially threaded). The &#8220;DIN9&#8221; in the title is likely a typo for these common standards.<\/li>\n<li><strong>Imperial System (ANSI):<\/strong> Refers to American standards with threads per inch, including UNF (Unified National Fine) for fine threads and UNC (Unified National Coarse) for coarse threads.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong>Product Parameters<\/strong><\/h4>\n<div class=\"MarkdownTable_tableContainer__2k5Kh\" tabindex=\"0\" role=\"region\">\n<table>\n<thead>\n<tr>\n<th>Parameter Item<\/th>\n<th>Specification Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Product Name<\/strong><\/td>\n<td>Boulon hexagonal<\/td>\n<\/tr>\n<tr>\n<td><strong>Brand Name<\/strong><\/td>\n<td>Duojia<\/td>\n<\/tr>\n<tr>\n<td><strong>Place of Origin<\/strong><\/td>\n<td>Hebei, China<\/td>\n<\/tr>\n<tr>\n<td><strong>Material<\/strong><\/td>\n<td>Carbon Steel<\/td>\n<\/tr>\n<tr>\n<td><strong>Grade (Strength)<\/strong><\/td>\n<td>4.8, 8.8, 10.9, 12.9<\/td>\n<\/tr>\n<tr>\n<td><strong>Surface Treatment<\/strong><\/td>\n<td>White Zinc Plated (Clear\/Blue Zinc)<\/td>\n<\/tr>\n<tr>\n<td><strong>Size Range<\/strong><\/td>\n<td>M6 to M24 (Metric); corresponding Imperial sizes also likely available<\/td>\n<\/tr>\n<tr>\n<td><strong>Measurement System<\/strong><\/td>\n<td>Metric (DIN) and Imperial (UNF\/UNC, ANSI) as per title<\/td>\n<\/tr>\n<tr>\n<td><strong>Application<\/strong><\/td>\n<td>Heavy Industry, General Industry, General Repairs, Construction<\/td>\n<\/tr>\n<tr>\n<td><strong>Certifications<\/strong><\/td>\n<td>ISO9001, ISO14001, ISO45001, SGS<\/td>\n<\/tr>\n<tr>\n<td><strong>Packaging Options<\/strong><\/td>\n<td>Small Pack+Carton+Pallet; Bag\/Box with Pallet<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h4><strong>Carbon Steel Strength Grades Explained<\/strong><\/h4>\n<p>The grade of a carbon steel bolt determines its strength and is crucial for selecting the right fastener for an application:<\/p>\n<ul>\n<li><strong>Grade 4.8:<\/strong> A low-strength carbon steel bolt suitable for light-duty fastening and general-purpose applications where high load is not a factor.<\/li>\n<li><strong>Grade 8.8:<\/strong> The most common structural grade, offering medium-to-high tensile strength. It is a versatile and reliable choice for machinery, automotive, and construction.<\/li>\n<li><strong>Grade 10.9:<\/strong> A high-strength bolt used for applications requiring significant clamping force and load-bearing capacity, such as in engines or heavy equipment.<\/li>\n<li><strong>Grade 12.9:<\/strong> The highest standard strength grade, offering exceptional tensile strength for the most critical, high-stress fastening applications.<\/li>\n<\/ul>\n<h4><strong>Key Features<\/strong><\/h4>\n<ul>\n<li><strong>Standard Corrosion Protection:<\/strong> The zinc-plated finish offers effective protection against rust in general-purpose and indoor environments.<\/li>\n<li><strong>Economical Fastening Solution:<\/strong> Provides a great balance of performance and affordability, making it ideal for bulk purchasing and cost-sensitive projects.<\/li>\n<li><strong>Wide Range of Strengths:<\/strong> Available in multiple strength grades to suit everything from simple repairs to high-stress structural applications.<\/li>\n<li><strong>Available in Multiple Standards:<\/strong> Offered in both Metric and Imperial (UNF\/UNC) sizes to meet diverse project requirements globally.<\/li>\n<\/ul>\n<h4><strong>Common Applications<\/strong><\/h4>\n<ul>\n<li><strong>General Repairs and DIY Projects:<\/strong> A staple fastener for various household and workshop tasks.<\/li>\n<li><strong>Furniture Assembly:<\/strong> Commonly used for assembling flat-pack and custom furniture.<\/li>\n<li><strong>Light-Duty Construction:<\/strong> Suitable for indoor framing, fixtures, and applications not exposed to harsh weather.<\/li>\n<li><strong>Machinery and Equipment:<\/strong> Used for fixing covers, panels, and non-critical components.<\/li>\n<\/ul>\n<h4><strong>Installation Guidelines<\/strong><\/h4>\n<ol>\n<li>Align the holes of the components you wish to fasten.<\/li>\n<li>Insert the zinc-plated hex bolt through the holes.<\/li>\n<li>If using a nut, place it on the opposite side and hand-tighten.<\/li>\n<li>Use a correctly sized wrench or socket to tighten the bolt head to the required torque.<\/li>\n<li><strong>Caution:<\/strong> Avoid over-tightening or using tools that could damage the zinc coating, as this will compromise its corrosion resistance and may lead to premature rusting at the damaged site.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>The Duojia Zinc-Plated Hex Bolt is a general-purpose fastener made from carbon steel, designed to offer a reliable and economical solution for a wide variety of applications. These bolts are coated with a layer of zinc (specifically, a white\/clear zinc finish) to provide standard corrosion resistance, making them suitable for indoor use, light-duty construction, furniture assembly, and general repairs. With a standard hexagonal head for easy installation, these bolts are available in a comprehensive range of sizes and strength grades, and are offered in both Metric (DIN) and Imperial (UNF\/UNC) standards.<\/p>","protected":false},"featured_media":1187,"template":"","meta":[],"product_brand":[],"product_cat":[143],"product_tag":[102,132,145,146,148,151],"class_list":{"0":"post-636","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-hex-bolt","7":"product_tag-stainless-steel-anchor-bolts","8":"product_tag-anchor-bolts-manufacturer","9":"product_tag-hex-head-bolt","10":"product_tag-hex-bolts-and-nuts","11":"product_tag-stainless-steel-hex-bolts","12":"product_tag-m8-hex-bolt","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/mj-anchor.com\/fr\/wp-json\/wp\/v2\/product\/636","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mj-anchor.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mj-anchor.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mj-anchor.com\/fr\/wp-json\/wp\/v2\/media\/1187"}],"wp:attachment":[{"href":"https:\/\/mj-anchor.com\/fr\/wp-json\/wp\/v2\/media?parent=636"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mj-anchor.com\/fr\/wp-json\/wp\/v2\/product_brand?post=636"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mj-anchor.com\/fr\/wp-json\/wp\/v2\/product_cat?post=636"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mj-anchor.com\/fr\/wp-json\/wp\/v2\/product_tag?post=636"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}