{"id":5756,"date":"2026-05-22T22:22:27","date_gmt":"2026-05-22T14:22:27","guid":{"rendered":"https:\/\/xzfastener.com\/?post_type=product&p=5756"},"modified":"2026-06-02T15:05:00","modified_gmt":"2026-06-02T07:05:00","slug":"din-931-zinc-plated-carbon-steel-hex-head-bolts-partially-threaded-metric-fasteners","status":"publish","type":"product","link":"https:\/\/xzfastener.com\/vi\/products\/din-931-zinc-plated-carbon-steel-hex-head-bolts-partially-threaded-metric-fasteners\/","title":{"rendered":"DIN 931 Zinc Plated Carbon Steel Hex Head Bolts Partially Threaded Metric Fasteners"},"content":{"rendered":"

Product Description<\/h2>\n

DIN 931 Zinc Plated Carbon Steel Hex Head Bolts<\/strong> are partially threaded metric fasteners designed for machinery assembly, steel structure connection, equipment installation, construction hardware, and general industrial fastening.<\/p>\n

This product features a hex head<\/strong>, carbon steel body<\/strong>, zinc plated surface<\/strong>, and partially threaded shank<\/strong>. Compared with fully threaded bolts, the DIN 931 partial thread design includes a smooth shank section, which helps improve positioning and provides stable support in assembled parts.<\/p>\n

For buyers, this product solves a common procurement problem: choosing the correct bolt type when the application requires a smooth shank plus threaded end<\/strong>, not a fully threaded DIN 933 bolt.<\/p>\n

\n

Key Product Features<\/h2>\n
    \n
  • DIN 931 standard hex head bolt<\/li>\n
  • Carbon steel material<\/li>\n
  • Zinc plated surface finish<\/li>\n
  • Partially threaded structure<\/li>\n
  • Metric thread design<\/li>\n
  • Hex head for wrench or socket installation<\/li>\n
  • Suitable for use with matching nuts and washers<\/li>\n
  • Designed for machinery, construction, equipment, and metal assembly<\/li>\n<\/ul>\n
    \n

    Product Specifications<\/h2>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Item<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
    Product Name<\/td>\nDIN 931 Zinc Plated Carbon Steel Hex Head Bolt<\/td>\n<\/tr>\n
    Standard<\/td>\nDIN 931<\/td>\n<\/tr>\n
    Material<\/td>\nCarbon Steel<\/td>\n<\/tr>\n
    Surface Treatment<\/td>\nZinc Plated<\/td>\n<\/tr>\n
    Surface Color<\/td>\nSilver Zinc<\/td>\n<\/tr>\n
    Head Type<\/td>\nHex Head<\/td>\n<\/tr>\n
    Thread Design<\/td>\nPartially Threaded<\/td>\n<\/tr>\n
    Thread Type<\/td>\nMetric Thread<\/td>\n<\/tr>\n
    Body Structure<\/td>\nSmooth Shank + Threaded End<\/td>\n<\/tr>\n
    Fastening Method<\/td>\nUsed with Nut, Washer, or Threaded Hole<\/td>\n<\/tr>\n
    Product Category<\/td>\nHex Bolt \/ Partially Threaded Bolt \/ Metric Fastener<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    What Procurement Problems Does This Bolt Solve?<\/h2>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n
    Purchasing Problem<\/th>\nHow This Product Helps<\/th>\n<\/tr>\n<\/thead>\n
    Wrong standard selection<\/td>\nDIN 931 is clearly used for partially threaded hex bolts.<\/td>\n<\/tr>\n
    Confusion with DIN 933<\/td>\nDIN 931 has a smooth shank section, while DIN 933 is fully threaded.<\/td>\n<\/tr>\n
    Need for stable positioning<\/td>\nThe smooth shank helps keep parts aligned during assembly.<\/td>\n<\/tr>\n
    Need for surface protection<\/td>\nZinc plating helps protect the carbon steel surface from oxidation.<\/td>\n<\/tr>\n
    Tool compatibility<\/td>\nHex head design works with standard wrenches, sockets, and torque tools.<\/td>\n<\/tr>\n
    Assembly matching<\/td>\nCan be paired with matching metric nuts and washers.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    DIN 931 vs DIN 933<\/h2>\n
    \n
    \n\n\n\n\n\n\n
    Standard<\/th>\nThread Type<\/th>\nMain Difference<\/th>\n<\/tr>\n<\/thead>\n
    DIN 931<\/td>\nPartially Threaded<\/td>\nHas a smooth shank and threaded end<\/td>\n<\/tr>\n
    DIN 933<\/td>\nFully Threaded<\/td>\nThread runs along the full bolt body<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    This product is DIN 931<\/strong>, because it has a clear smooth shank section between the hex head and the threaded part.<\/p>\n

    \n

    Material and Surface Finish<\/h2>\n

    The bolt is made from carbon steel<\/strong>, which is widely used in industrial fasteners for practical strength and cost-effective performance.<\/p>\n

    The zinc plated finish<\/strong> gives the bolt a silver metallic appearance and provides surface protection for general industrial use.<\/p>\n

    \n
    \n\n\n\n\n\n
    Material<\/th>\nSurface Finish<\/th>\nAppearance<\/th>\nFunction<\/th>\n<\/tr>\n<\/thead>\n
    Carbon Steel<\/td>\nZinc Plated<\/td>\nSilver Metallic<\/td>\nHelps improve surface protection and appearance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    Product Structure<\/h2>\n
    \n
    \n\n\n\n\n\n\n\n\n\n
    Part<\/th>\nFunction<\/th>\n<\/tr>\n<\/thead>\n
    Hex Head<\/td>\nAllows tightening with wrench, socket, or torque tool<\/td>\n<\/tr>\n
    Smooth Shank<\/td>\nHelps with alignment, positioning, and stable assembly<\/td>\n<\/tr>\n
    Threaded End<\/td>\nProvides fastening engagement with nut or threaded hole<\/td>\n<\/tr>\n
    Zinc Plated Layer<\/td>\nProtects the carbon steel surface<\/td>\n<\/tr>\n
    Carbon Steel Body<\/td>\nProvides durable fastening performance<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    Common Applications<\/h2>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n
    Application Area<\/th>\nTypical Use<\/th>\n<\/tr>\n<\/thead>\n
    Machinery Assembly<\/td>\nMachine frames, equipment bodies, mechanical connections<\/td>\n<\/tr>\n
    Construction Hardware<\/td>\nSteel brackets, support plates, installation components<\/td>\n<\/tr>\n
    Steel Structure<\/td>\nMetal frame connection and structural component fastening<\/td>\n<\/tr>\n
    Automotive & Repair<\/td>\nBrackets, chassis-related parts, maintenance fastening<\/td>\n<\/tr>\n
    Industrial Equipment<\/td>\nProduction equipment, fixing systems, replacement bolts<\/td>\n<\/tr>\n
    Metal Fabrication<\/td>\nSteel plates, fabricated frames, hardware assembly<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    Buying Guide for DIN 931 Hex Bolts<\/h2>\n

    When purchasing DIN 931 zinc plated carbon steel hex bolts, buyers should confirm the following information before ordering:<\/p>\n

    \n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Required Information<\/th>\nWhy It Matters<\/th>\n<\/tr>\n<\/thead>\n
    Diameter<\/td>\nEnsures the bolt fits the hole and nut<\/td>\n<\/tr>\n
    Length<\/td>\nDetermines assembly thickness compatibility<\/td>\n<\/tr>\n
    Thread Length<\/td>\nImportant for partial thread engagement<\/td>\n<\/tr>\n
    Material<\/td>\nConfirms carbon steel requirement<\/td>\n<\/tr>\n
    Surface Finish<\/td>\nConfirms zinc plated appearance and protection<\/td>\n<\/tr>\n
    Quantity<\/td>\nAffects quotation, packing, and delivery planning<\/td>\n<\/tr>\n
    Matching Parts<\/td>\nNuts and washers may be required for complete assembly<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    Installation Notes<\/h2>\n
    \n
    \n\n\n\n\n\n\n\n\n\n
    Step<\/th>\nRecommendation<\/th>\n<\/tr>\n<\/thead>\n
    Check Standard<\/td>\nUse DIN 931 when a partially threaded bolt is required.<\/td>\n<\/tr>\n
    Match Thread<\/td>\nUse compatible metric nuts or threaded holes.<\/td>\n<\/tr>\n
    Use Proper Tool<\/td>\nTighten with a matching wrench or socket.<\/td>\n<\/tr>\n
    Add Washer<\/td>\nUse washers when load distribution is required.<\/td>\n<\/tr>\n
    Check Assembly<\/td>\nEnsure the smooth shank and threaded section fit the application correctly.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    FAQ<\/h2>\n

    1. What is a DIN 931 bolt?<\/h3>\n

    A DIN 931 bolt is a metric hex head bolt with a partially threaded shank. It has a hex head, smooth shank section, and threaded end.<\/p>\n

    2. What material is this bolt made from?<\/h3>\n

    This bolt is made from carbon steel<\/strong>.<\/p>\n

    3. What is the surface treatment?<\/h3>\n

    The surface treatment is zinc plated<\/strong>.<\/p>\n

    4. Is this bolt fully threaded?<\/h3>\n

    No. This is a partially threaded<\/strong> bolt.<\/p>\n

    5. What is the difference between DIN 931 and DIN 933?<\/h3>\n

    DIN 931 is partially threaded. DIN 933 is fully threaded.<\/p>\n

    6. What tools are used for installation?<\/h3>\n

    It can be installed with a wrench, socket, or torque tool that matches the hex head size.<\/p>\n

    7. Can this bolt be used with nuts and washers?<\/h3>\n

    Yes. DIN 931 hex bolts are commonly used with matching metric nuts and washers.<\/p>\n

    8. What applications is this bolt suitable for?<\/h3>\n

    It is suitable for machinery assembly, construction hardware, steel structure connection, equipment installation, metal fabrication, and general industrial fastening.<\/p>\n

    \n

    ","protected":false},"excerpt":{"rendered":"

    DIN 931 zinc plated carbon steel hex head bolts with partially threaded metric design. Silver zinc fasteners for machinery, construction, steel structure, equipment assembly, and industrial fastening applications.<\/strong><\/p>","protected":false},"featured_media":5757,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"fastener-coating":[33],"fastener-material":[42],"fastener-type":[53,474],"product_brand":[],"product_cat":[22],"product_tag":[],"class_list":{"0":"post-5756","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"fastener-coating-electroplating-zinc","7":"fastener-material-carbon-steel","8":"fastener-type-bolts","9":"fastener-type-hex-head-bolt","10":"product_cat-standard-fasteners","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product\/5756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=5756"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product\/5756\/revisions"}],"predecessor-version":[{"id":5758,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product\/5756\/revisions\/5758"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media\/5757"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=5756"}],"wp:term":[{"taxonomy":"fastener-coating","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/fastener-coating?post=5756"},{"taxonomy":"fastener-material","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/fastener-material?post=5756"},{"taxonomy":"fastener-type","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/fastener-type?post=5756"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product_brand?post=5756"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product_cat?post=5756"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product_tag?post=5756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}