{"id":7087,"date":"2025-12-17T17:47:50","date_gmt":"2025-12-17T09:47:50","guid":{"rendered":"https:\/\/xzfastener.com\/?p=7087"},"modified":"2026-06-23T17:51:27","modified_gmt":"2026-06-23T09:51:27","slug":"din-931-carbon-steel-hex-bolts-manufacturer","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/din-931-carbon-steel-hex-bolts-manufacturer\/","title":{"rendered":"DIN 931 carbon steel hex bolts manufacturer"},"content":{"rendered":"\n<style>\n  .xz-wp-product-page {\n    --xz-blue: #0b2f55;\n    --xz-blue-2: #123f6d;\n    --xz-ink: #1d2b38;\n    --xz-muted: #586a7a;\n    --xz-bg: #f3f7fb;\n    --xz-line: #d7e3ee;\n    --xz-card: #ffffff;\n    --xz-accent: #f0b429;\n    font-family: Arial, Helvetica, sans-serif;\n    color: var(--xz-ink);\n    background: #ffffff;\n    line-height: 1.65;\n  }\n\n  .xz-wp-product-page * {\n    box-sizing: border-box;\n  }\n\n  .xz-wp-product-page a {\n    color: #0b5ea8;\n    text-decoration: underline;\n    text-underline-offset: 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}\n\n  .xz-wp-product-page .xz-lead {\n    font-size: 17px;\n    color: #314255;\n    max-width: 930px;\n  }\n\n  .xz-wp-product-page .xz-spec-grid {\n    display: grid;\n    grid-template-columns: repeat(5, 1fr);\n    gap: 14px;\n    margin-top: 22px;\n  }\n\n  .xz-wp-product-page .xz-spec-item,\n  .xz-wp-product-page .xz-card {\n    background: var(--xz-card);\n    border: 1px solid var(--xz-line);\n    border-radius: 8px;\n    padding: 18px;\n  }\n\n  .xz-wp-product-page .xz-spec-item strong {\n    display: block;\n    color: var(--xz-blue);\n    font-size: 13px;\n    text-transform: uppercase;\n    margin-bottom: 6px;\n  }\n\n  .xz-wp-product-page .xz-two-col {\n    display: grid;\n    grid-template-columns: 1fr 1fr;\n    gap: 22px;\n    margin-top: 22px;\n  }\n\n  .xz-wp-product-page ul {\n    margin: 12px 0 0 20px;\n    padding: 0;\n  }\n\n  .xz-wp-product-page li {\n    margin: 8px 0;\n  }\n\n  .xz-wp-product-page .xz-table-wrap {\n    overflow-x: auto;\n    border: 1px solid 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1px solid var(--xz-line);\n    background: #e8eef5;\n  }\n\n  .xz-wp-product-page details {\n    border: 1px solid var(--xz-line);\n    border-radius: 8px;\n    padding: 16px 18px;\n    background: #ffffff;\n    margin: 12px 0;\n  }\n\n  .xz-wp-product-page summary {\n    cursor: pointer;\n    font-weight: 700;\n    color: var(--xz-blue);\n  }\n\n  .xz-wp-product-page details p {\n    margin: 12px 0 0;\n    color: #34495d;\n  }\n\n  .xz-wp-product-page .xz-cta {\n    background: var(--xz-blue);\n    color: #ffffff;\n    padding: 42px 0;\n  }\n\n  .xz-wp-product-page .xz-cta h2 {\n    color: #ffffff;\n  }\n\n  .xz-wp-product-page .xz-cta p {\n    color: #eaf3fb;\n    max-width: 900px;\n  }\n\n  .xz-wp-product-page .xz-button {\n    display: inline-block;\n    background: #ffffff;\n    color: var(--xz-blue);\n    padding: 12px 18px;\n    border-radius: 6px;\n    font-weight: 700;\n    text-decoration: none;\n    margin-top: 12px;\n  }\n\n  @media (max-width: 900px) {\n    .xz-wp-product-page .xz-hero-grid,\n    .xz-wp-product-page .xz-two-col,\n    .xz-wp-product-page .xz-image-band {\n      grid-template-columns: 1fr;\n    }\n\n    .xz-wp-product-page .xz-spec-grid {\n      grid-template-columns: repeat(2, 1fr);\n    }\n  }\n\n  @media (max-width: 560px) {\n    .xz-wp-product-page .xz-container {\n      padding: 0 16px;\n    }\n\n    .xz-wp-product-page .xz-hero {\n      padding: 38px 0 34px;\n    }\n\n    .xz-wp-product-page .xz-spec-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .xz-wp-product-page .xz-section {\n      padding: 36px 0;\n    }\n  }\n<\/style>\n\n<article class=\"xz-wp-product-page\">\n  <section class=\"xz-hero\">\n    <div class=\"xz-container xz-hero-grid\">\n      <div>\n        <span class=\"xz-eyebrow\">XZ Fastener Partial Thread Metric Bolt Supply<\/span>\n        <h1>DIN 931 carbon steel hex bolts manufacturer<\/h1>\n        <p>XZ Fastener supplies DIN 931 carbon steel hex bolts for machinery, steel frames, equipment bases, brackets, guardrail systems, and general industrial assemblies. DIN 931 is a partial thread metric hex head bolt standard, commonly referenced with ISO 4014, and is selected when the unthreaded shank should pass through part of the clamped joint. Carbon steel options can be supplied in property classes such as 4.8, 8.8, and 10.9, with zinc plated, black oxide, hot dip galvanized, plain, Dacromet, or other finishes according to order requirement.<\/p>\n      <\/div>\n      <div class=\"xz-hero-card\">\n        <img decoding=\"async\" src=\"https:\/\/xzfastener.com\/wp-content\/uploads\/2026\/05\/1.%E5%85%AD%E8%A7%92-%E5%8D%8A%E7%89%99.png\" alt=\"DIN 931 carbon steel partial thread hex head bolts\">\n        <div>DIN 931 carbon steel partial thread hex bolts are available in metric sizes, multiple strength classes, and industrial surface finishes for project and distributor supply.<\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>Quick Specs<\/h2>\n      <div class=\"xz-spec-grid\">\n        <div class=\"xz-spec-item\"><strong>Standard<\/strong>DIN 931 \/ ISO 4014 partial thread hex head bolts<\/div>\n        <div class=\"xz-spec-item\"><strong>Strength<\/strong>4.8, 8.8, 10.9 and project-specified classes<\/div>\n        <div class=\"xz-spec-item\"><strong>Material<\/strong>Carbon steel and alloy steel according to strength requirement<\/div>\n        <div class=\"xz-spec-item\"><strong>Finish<\/strong>Plain, zinc plated, black oxide, hot dip galvanized, Dacromet, Geomet<\/div>\n        <div class=\"xz-spec-item\"><strong>Application<\/strong>Machinery, steel structures, equipment bases, brackets, frames, and maintenance stock<\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>What Buyers Should Know Before Sourcing DIN 931 Carbon Steel Hex Bolts<\/h2>\n      <p class=\"xz-lead\">DIN 931 carbon steel hex bolts are partial-thread bolts, so buyers should not treat them as direct substitutes for fully threaded DIN 933 bolts without checking the joint design. The unthreaded shank can improve bearing in the clamped area, while the threaded section must still provide enough nut engagement. Before confirming production, check the grip length, thread length, property class, finish, nut grade, washer type, and required inspection documents.<\/p>\n      <div class=\"xz-two-col\">\n        <div class=\"xz-card\">\n          <h3>Partial Thread Function<\/h3>\n          <p>DIN 931 is useful when the shank should pass through the shear or grip area. Buyers comparing partial and full thread options can review this guide on <a href=\"https:\/\/xzfastener.com\/din-933-vs-din-931-full-thread-vs-partial-thread-hex-bolts-explained\/\">DIN 933 versus DIN 931<\/a> before changing specifications.<\/p>\n        <\/div>\n        <div class=\"xz-card\">\n          <h3>Carbon Steel Selection<\/h3>\n          <p>Carbon steel is widely used for metric hex head bolts because it offers practical strength and cost control for industrial assemblies. See XZ Fastener&#8217;s guide to <a href=\"https:\/\/xzfastener.com\/carbon-steel-fasteners-strength-and-corrosion-resistance\/\">carbon steel fasteners<\/a> for strength and corrosion considerations.<\/p>\n        <\/div>\n      <\/div>\n      <p class=\"xz-note\">For a close product reference, see XZ Fastener&#8217;s <a href=\"https:\/\/xzfastener.com\/products\/din-931-iso-4014-hex-head-bolt-metric-half-thread-high-strength-steel-grades-4-8-10-9-zinc-black-oxide-hdg-xz-fastener\/\">DIN 931 ISO 4014 hex head bolt<\/a> page with carbon steel grades and finish options.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>Common Purchasing Descriptions<\/h2>\n      <p>Buyers may describe DIN 931 carbon steel hex bolts in several ways depending on project drawings, distributor catalogs, or equipment maintenance lists. A clear description should include the standard, size, strength class, finish, and whether matching nuts and washers are required.<\/p>\n      <ul>\n        <li>DIN 931 carbon steel hex bolts, M12 x 80, Grade 8.8, zinc plated<\/li>\n        <li>DIN 931 \/ ISO 4014 partial thread metric hex head bolts, carbon steel<\/li>\n        <li>Grade 8.8 carbon steel hex bolts with DIN 934 nuts and flat washers<\/li>\n        <li>Black oxide DIN 931 carbon steel hex bolts for machinery assembly<\/li>\n        <li>Hot dip galvanized DIN 931 hex bolts for outdoor steel structures<\/li>\n        <li>DIN 931 and DIN 933 full thread hex bolts for mixed distributor stock<\/li>\n      <\/ul>\n      <p>When both partial-thread and full-thread items are needed, XZ Fastener can review <a href=\"https:\/\/xzfastener.com\/din-931-partial-thread-hex-bolts-supplier\/\">DIN 931 partial thread hex bolts<\/a> together with full-thread items to keep material, finish, and packing consistent.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>Detailed Specifications Table<\/h2>\n      <div class=\"xz-table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Item<\/th>\n              <th>Typical Requirement<\/th>\n              <th>Buyer Notes<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Standard<\/td>\n              <td>DIN 931, ISO 4014 reference where applicable<\/td>\n              <td>Confirm drawing requirements when strict dimensional interchangeability is required.<\/td>\n            <\/tr>\n            <tr>\n              <td>Bolt Type<\/td>\n              <td>Hex head bolt with partial thread<\/td>\n              <td>Check whether the assembly needs DIN 931 partial thread or DIN 933 full thread hex bolts.<\/td>\n            <\/tr>\n            <tr>\n              <td>Material<\/td>\n              <td>Carbon steel for 4.8, 8.8, 10.9 and related requirements<\/td>\n              <td>Material route depends on mechanical property class and heat treatment requirement.<\/td>\n            <\/tr>\n            <tr>\n              <td>Diameter Range<\/td>\n              <td>Common metric sizes such as M6 to M36; other sizes reviewed by inquiry<\/td>\n              <td>MOQ may vary by diameter, length, material, finish, and packing method.<\/td>\n            <\/tr>\n            <tr>\n              <td>Length Range<\/td>\n              <td>DIN 931 standard lengths and project size lists<\/td>\n              <td>Provide diameter x length for each item, such as M10 x 70 or M16 x 120.<\/td>\n            <\/tr>\n            <tr>\n              <td>Thread<\/td>\n              <td>Metric coarse thread as common supply; fine pitch available upon request<\/td>\n              <td>State thread pitch clearly if not standard coarse thread.<\/td>\n            <\/tr>\n            <tr>\n              <td>Strength Class<\/td>\n              <td>4.8, 8.8, 10.9 and project-specified classes<\/td>\n              <td>For Grade 8.8 carbon steel hex bolts, hardness and tensile testing can be arranged according to order requirement.<\/td>\n            <\/tr>\n            <tr>\n              <td>Finish<\/td>\n              <td>Plain, zinc plated, black oxide, hot dip galvanized, Dacromet, Geomet<\/td>\n              <td>Coating thickness affects thread fit, appearance, corrosion resistance, and nut matching.<\/td>\n            <\/tr>\n            <tr>\n              <td>Matching Parts<\/td>\n              <td>DIN 934 nuts, flat washers, spring washers, hardened washers<\/td>\n              <td>Matched sets help reduce assembly mismatch and receiving errors.<\/td>\n            <\/tr>\n            <tr>\n              <td>Inspection<\/td>\n              <td>Dimensions, thread gauge, hardness, tensile test, coating thickness, packing check<\/td>\n              <td>Inspection scope should be confirmed before production and shipment.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p class=\"xz-note\">For full-thread alternatives in the same carbon steel family, buyers can review XZ Fastener&#8217;s <a href=\"https:\/\/xzfastener.com\/din-933-full-thread-hex-bolts-manufacturer\/\">DIN 933 full thread hex bolts<\/a>.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>Material and Grade Explanation<\/h2>\n      <p>Carbon steel DIN 931 hex bolts can be supplied in different property classes according to working load and assembly design. Grade 4.8 is used for general fastening, Grade 8.8 carbon steel hex bolts are common for machinery and steel structure connections, and Grade 10.9 can be reviewed for higher-load applications where the joint design and finish selection are suitable.<\/p>\n      <p>For Grade 8.8 and above, heat treatment and mechanical property control are important. Buyers should confirm bolt grade, nut grade, washer hardness, tightening method, and whether material certificates or test reports are needed. XZ Fastener&#8217;s <a href=\"https:\/\/xzfastener.com\/8-8-10-9-and-12-9-bolts-mechanical-properties-comparison\/\">8.8, 10.9, and 12.9 bolt comparison<\/a> can help purchasing teams choose a practical strength level.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>Surface Finish Selection Guide<\/h2>\n      <p>The finish should match the installation environment, storage time, appearance requirement, and thread-fit needs. Carbon steel hex bolts require suitable corrosion protection when used outdoors or stored for long periods before assembly.<\/p>\n      <div class=\"xz-table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Finish<\/th>\n              <th>Suitable Use<\/th>\n              <th>Purchasing Consideration<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Plain or oiled<\/td>\n              <td>Temporary assembly, later coating, controlled indoor storage<\/td>\n              <td>Requires rust prevention during storage and transport.<\/td>\n            <\/tr>\n            <tr>\n              <td>Zinc plated<\/td>\n              <td>Indoor machinery, warehouse stock, general equipment assembly<\/td>\n              <td>Clean appearance and common availability; buyers may also request zinc plated DIN 933 bolts for full-thread positions.<\/td>\n            <\/tr>\n            <tr>\n              <td>Black oxide<\/td>\n              <td>Machinery interiors, oiled assemblies, black surface requirements<\/td>\n              <td>Limited corrosion protection unless combined with oil or other protection; black oxide DIN 933 bolts can be supplied for matching full-thread needs.<\/td>\n            <\/tr>\n            <tr>\n              <td>Hot dip galvanized<\/td>\n              <td>Outdoor steelwork, brackets, guardrails, exposed structures<\/td>\n              <td>Thicker zinc layer improves corrosion allowance, but thread fit and matched nut selection should be checked. Hot dip galvanized DIN 933 bolts may be ordered together for mixed assemblies.<\/td>\n            <\/tr>\n            <tr>\n              <td>Dacromet or Geomet<\/td>\n              <td>Outdoor equipment and corrosion-sensitive assemblies<\/td>\n              <td>Useful when coating uniformity and corrosion performance are both important.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p>For a broader coating comparison, see XZ Fastener&#8217;s <a href=\"https:\/\/xzfastener.com\/fastener-coating-guide-zinc-hdg-dacromet-ptfe-and-more\/\">fastener coating guide<\/a> before confirming zinc, HDG, black oxide, or zinc flake requirements.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>Manufacturing and Quality Control<\/h2>\n      <div class=\"xz-image-band\">\n        <img decoding=\"async\" src=\"https:\/\/xzfastener.com\/wp-content\/uploads\/2026\/03\/jiance64.jpg\" alt=\"Fastener inspection and quality control for carbon steel hex bolts\">\n        <div>\n          <p>DIN 931 carbon steel hex bolts are generally produced through wire preparation, heading or forging depending on size, shank control, thread rolling, heat treatment for higher grades, surface finishing, inspection, and packing. Since DIN 931 includes both a plain shank and threaded section, dimensional control is important for proper assembly fit.<\/p>\n          <ul>\n            <li>Head height, across-flats width, shank diameter, total length, and thread length checks<\/li>\n            <li>Go\/no-go thread gauge inspection for metric thread compatibility<\/li>\n            <li>Hardness and tensile testing for Grade 8.8 or higher classes when requested<\/li>\n            <li>Coating coverage, surface appearance, thickness, and thread build-up review<\/li>\n            <li>Size separation, carton weight, pallet label, and batch identification checks<\/li>\n          <\/ul>\n        <\/div>\n      <\/div>\n      <p>For stock programs involving both partial and full thread items, XZ Fastener can review <a href=\"https:\/\/xzfastener.com\/products\/din-931-din-933-grade-8-8-black-oxide-carbon-steel-hex-head-bolts-fully-and-partially-threaded\/\">DIN 931 and DIN 933 Grade 8.8 carbon steel hex bolts<\/a> in one inquiry.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>Applications<\/h2>\n      <div class=\"xz-two-col\">\n        <div class=\"xz-card\">\n          <h3>Machinery and Equipment<\/h3>\n          <p>DIN 931 carbon steel hex bolts are used in machinery bases, industrial frames, conveyors, agricultural equipment, and general equipment assembly where partial thread design supports the clamped joint.<\/p>\n        <\/div>\n        <div class=\"xz-card\">\n          <h3>Steel Structures and Brackets<\/h3>\n          <p>Grade 8.8 carbon steel hex bolts with suitable washers and nuts can be supplied for brackets, fabricated steel structures, support plates, guardrails, and outdoor assemblies.<\/p>\n        <\/div>\n        <div class=\"xz-card\">\n          <h3>Maintenance and Replacement Stock<\/h3>\n          <p>Metric hex head bolts in DIN 931 sizes are practical for maintenance stock where drawings specify partial thread bolts rather than full thread substitutes.<\/p>\n        <\/div>\n        <div class=\"xz-card\">\n          <h3>Distributor Supply<\/h3>\n          <p>Importers and wholesalers can request mixed size lists, matched nuts and washers, carton labels, pallet marks, and repeat stock planning according to local demand.<\/p>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>How to Get a Faster Quotation<\/h2>\n      <p>A complete inquiry helps XZ Fastener check material, tooling, grade, finish, packing, and lead time more efficiently. If the bolts are used in a project, include drawings or the relevant standard notes.<\/p>\n      <ul>\n        <li>Standard: DIN 931, ISO 4014, or buyer drawing reference<\/li>\n        <li>Size list: diameter x length, such as M8 x 50, M12 x 80, M20 x 120<\/li>\n        <li>Strength class: 4.8, 8.8, 10.9, or other requirement<\/li>\n        <li>Material: carbon steel grade or mechanical property class requirement<\/li>\n        <li>Finish: plain, zinc plated, black oxide, hot dip galvanized, Dacromet, Geomet, or other coating<\/li>\n        <li>Quantity: quantity per size and estimated repeat demand if available<\/li>\n        <li>Packaging: bulk carton, small box, woven bag, pallet, private label, barcode, or project mark<\/li>\n        <li>Inspection requirements: material certificate, dimensional report, hardness, tensile test, coating thickness, salt spray, or third-party inspection<\/li>\n      <\/ul>\n      <p>Send your details through the <a href=\"https:\/\/xzfastener.com\/request-quote\/\">request a quote<\/a> page for review of DIN 931 carbon steel hex bolts and related metric fasteners.<\/p>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-section\">\n    <div class=\"xz-container\">\n      <h2>FAQ<\/h2>\n      <details>\n        <summary>What is a DIN 931 carbon steel hex bolt?<\/summary>\n        <p>It is a metric hex head bolt with partial thread, made from carbon steel and supplied according to DIN 931 dimensions. It is commonly used in machinery, steel frames, brackets, and equipment assemblies.<\/p>\n      <\/details>\n      <details>\n        <summary>How is DIN 931 different from DIN 933?<\/summary>\n        <p>DIN 931 is partial thread, while DIN 933 is full thread. DIN 931 is selected when an unthreaded shank is required through part of the clamped joint, while DIN 933 full thread hex bolts are used when thread is needed along the full bolt length.<\/p>\n      <\/details>\n      <details>\n        <summary>Can DIN 931 carbon steel hex bolts be supplied in Grade 8.8?<\/summary>\n        <p>Yes. Grade 8.8 carbon steel hex bolts are a common option for DIN 931 partial thread bolts. Hardness, tensile testing, and material certificates can be supplied according to order requirement.<\/p>\n      <\/details>\n      <details>\n        <summary>Which finishes are available for carbon steel DIN 931 bolts?<\/summary>\n        <p>Common finishes include plain, zinc plated, black oxide, hot dip galvanized, Dacromet, and Geomet. The correct finish depends on corrosion exposure, appearance requirement, storage time, and thread-fit needs.<\/p>\n      <\/details>\n      <details>\n        <summary>Can XZ Fastener supply nuts and washers together with DIN 931 bolts?<\/summary>\n        <p>Yes. DIN 934 nuts, flat washers, spring washers, hardened washers, and assembled bolt-nut-washer sets can be supplied according to order requirement.<\/p>\n      <\/details>\n      <details>\n        <summary>What should I provide for an accurate quotation?<\/summary>\n        <p>Please provide the size list, strength class, material, finish, quantity, packaging method, inspection requirements, matching nut or washer needs, and any project drawings or standards that must be followed.<\/p>\n      <\/details>\n    <\/div>\n  <\/section>\n\n  <section class=\"xz-cta\">\n    <div class=\"xz-container\">\n      <h2>Send Your DIN 931 Carbon Steel Hex Bolt Inquiry<\/h2>\n      <p>For a faster response, send your size list, finish, quantity, packaging method, and inspection requirements. XZ Fastener can review DIN 931 carbon steel hex bolts, Grade 8.8 carbon steel hex bolts, metric hex head bolts, DIN 933 full thread hex bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts, hot dip galvanized DIN 933 bolts, and matched nut and washer sets according to your purchasing plan.<\/p>\n      <a class=\"xz-button\" href=\"https:\/\/xzfastener.com\/request-quote\/\">Request a Quote<\/a>\n    <\/div>\n  <\/section>\n\n  <script type=\"application\/ld+json\">\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@graph\": [\n      {\n        \"@type\": \"Organization\",\n        \"@id\": \"https:\/\/xzfastener.com\/#organization\",\n        \"name\": \"XZ Fastener\",\n        \"url\": \"https:\/\/xzfastener.com\/\",\n        \"contactPoint\": {\n          \"@type\": \"ContactPoint\",\n          \"url\": \"https:\/\/xzfastener.com\/home\/contact-us\/\",\n          \"contactType\": \"sales\"\n        }\n      },\n      {\n        \"@type\": \"BreadcrumbList\",\n        \"@id\": \"https:\/\/xzfastener.com\/din-931-carbon-steel-hex-bolts-manufacturer\/#breadcrumb\",\n        \"itemListElement\": [\n          {\n            \"@type\": \"ListItem\",\n            \"position\": 1,\n            \"name\": \"Home\",\n            \"item\": \"https:\/\/xzfastener.com\/\"\n          },\n          {\n            \"@type\": \"ListItem\",\n            \"position\": 2,\n            \"name\": \"Products\",\n            \"item\": \"https:\/\/xzfastener.com\/home\/products\/\"\n          },\n          {\n            \"@type\": \"ListItem\",\n            \"position\": 3,\n            \"name\": \"DIN 931 Carbon Steel Hex Bolts\",\n            \"item\": \"https:\/\/xzfastener.com\/din-931-carbon-steel-hex-bolts-manufacturer\/\"\n          }\n        ]\n      },\n      {\n        \"@type\": \"Product\",\n        \"@id\": \"https:\/\/xzfastener.com\/din-931-carbon-steel-hex-bolts-manufacturer\/#product\",\n        \"name\": \"DIN 931 Carbon Steel Hex Bolts\",\n        \"brand\": {\n          \"@type\": \"Brand\",\n          \"name\": \"XZ Fastener\"\n        },\n        \"manufacturer\": {\n          \"@id\": \"https:\/\/xzfastener.com\/#organization\"\n        },\n        \"image\": \"https:\/\/xzfastener.com\/wp-content\/uploads\/2026\/05\/1.%E5%85%AD%E8%A7%92-%E5%8D%8A%E7%89%99.png\",\n        \"description\": \"DIN 931 carbon steel partial thread metric hex head bolts for machinery, steel structures, brackets, equipment bases, frames, and maintenance stock, available in multiple strength classes and surface finishes according to order requirement.\",\n        \"material\": \"Carbon steel and alloy steel according to strength requirement\",\n        \"additionalProperty\": [\n          {\n            \"@type\": \"PropertyValue\",\n            \"name\": \"Standard\",\n            \"value\": \"DIN 931 \/ ISO 4014\"\n          },\n          {\n            \"@type\": \"PropertyValue\",\n            \"name\": \"Strength class\",\n            \"value\": \"4.8, 8.8, 10.9 and project-specified classes\"\n          },\n          {\n            \"@type\": \"PropertyValue\",\n            \"name\": \"Thread\",\n            \"value\": \"Metric partial thread\"\n          },\n          {\n            \"@type\": \"PropertyValue\",\n            \"name\": \"Finish\",\n            \"value\": \"Plain, zinc plated, black oxide, hot dip galvanized, Dacromet, Geomet, and other finishes upon request\"\n          },\n          {\n            \"@type\": \"PropertyValue\",\n            \"name\": \"Application\",\n            \"value\": \"Machinery, steel structures, equipment bases, brackets, frames, and maintenance stock\"\n          }\n        ]\n      },\n      {\n        \"@type\": \"FAQPage\",\n        \"@id\": \"https:\/\/xzfastener.com\/din-931-carbon-steel-hex-bolts-manufacturer\/#faq\",\n        \"mainEntity\": [\n          {\n            \"@type\": \"Question\",\n            \"name\": \"What is a DIN 931 carbon steel hex bolt?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"It is a metric hex head bolt with partial thread, made from carbon steel and supplied according to DIN 931 dimensions. It is commonly used in machinery, steel frames, brackets, and equipment assemblies.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"How is DIN 931 different from DIN 933?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"DIN 931 is partial thread, while DIN 933 is full thread. DIN 931 is selected when an unthreaded shank is required through part of the clamped joint, while DIN 933 full thread hex bolts are used when thread is needed along the full bolt length.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"Can DIN 931 carbon steel hex bolts be supplied in Grade 8.8?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"Yes. Grade 8.8 carbon steel hex bolts are a common option for DIN 931 partial thread bolts. Hardness, tensile testing, and material certificates can be supplied according to order requirement.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"Which finishes are available for carbon steel DIN 931 bolts?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"Common finishes include plain, zinc plated, black oxide, hot dip galvanized, Dacromet, and Geomet. The correct finish depends on corrosion exposure, appearance requirement, storage time, and thread-fit needs.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"Can XZ Fastener supply nuts and washers together with DIN 931 bolts?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"Yes. DIN 934 nuts, flat washers, spring washers, hardened washers, and assembled bolt-nut-washer sets can be supplied according to order requirement.\"\n            }\n          },\n          {\n            \"@type\": \"Question\",\n            \"name\": \"What should I provide for an accurate quotation?\",\n            \"acceptedAnswer\": {\n              \"@type\": \"Answer\",\n              \"text\": \"Please provide the size list, strength class, material, finish, quantity, packaging method, inspection requirements, matching nut or washer needs, and any project drawings or standards that must be followed.\"\n            }\n          }\n        ]\n      }\n    ]\n  }\n  <\/script>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>XZ Fastener Partial Thread Metric Bolt Supply DIN 931 carbon steel hex bolts manufacturer XZ Fastener supplies DIN 931 carbon steel hex bolts for machinery, steel frames, equipment bases, brackets, guardrail systems, and general industrial assemblies. DIN 931 is a partial thread metric hex head bolt standard, commonly referenced with ISO 4014, and is selected [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[110],"tags":[],"class_list":["post-7087","post","type-post","status-publish","format-standard","hentry","category-product-knowledge"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=7087"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7087\/revisions"}],"predecessor-version":[{"id":7088,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7087\/revisions\/7088"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=7087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=7087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=7087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}