{"id":5463,"date":"2026-05-22T22:22:39","date_gmt":"2026-05-22T14:22:39","guid":{"rendered":"https:\/\/xzfastener.com\/?post_type=product&p=5463"},"modified":"2026-06-02T15:10:25","modified_gmt":"2026-06-02T07:10:25","slug":"a4-316-stainless-steel-imperial-hex-head-bolts-unc-unf-corrosion-resistant-hex-cap-screws-in-inch-sizes","status":"publish","type":"product","link":"https:\/\/xzfastener.com\/vi\/products\/a4-316-stainless-steel-imperial-hex-head-bolts-unc-unf-corrosion-resistant-hex-cap-screws-in-inch-sizes\/","title":{"rendered":"A4 316 Stainless Steel Imperial Hex Head Bolts UNC UNF, Corrosion Resistant Hex Cap Screws in Inch Sizes"},"content":{"rendered":"

Product Description<\/h1>\n

316 Stainless Steel Imperial Hex Head Bolts UNC \/ UNF<\/h2>\n

Our 316 Stainless Steel Imperial Hex Head Bolts<\/strong> are high-quality inch-size fasteners designed for applications requiring excellent corrosion resistance, reliable strength, and long service life. Manufactured from premium A4 \/ 316 stainless steel<\/strong>, these bolts are suitable for demanding environments such as marine, outdoor, chemical, construction, machinery, and industrial applications.<\/p>\n

These imperial hex bolts are available with UNC coarse thread<\/strong> and UNF fine thread<\/strong>, making them suitable for different fastening requirements. The hex head design allows easy installation with standard inch wrenches, sockets, and spanners.<\/p>\n

\n

Key Features<\/h2>\n
    \n
  • Premium 316 stainless steel<\/strong> for superior corrosion resistance.<\/li>\n
  • Imperial inch sizes<\/strong> for American and international inch-thread applications.<\/li>\n
  • UNC and UNF thread options<\/strong> available.<\/li>\n
  • Hex head design<\/strong> for easy tightening and strong torque transmission.<\/li>\n
  • Suitable for marine and outdoor use<\/strong> due to excellent rust resistance.<\/li>\n
  • Strong and durable fastening performance<\/strong> for industrial and mechanical assembly.<\/li>\n
  • Clean stainless steel finish<\/strong> with professional appearance.<\/li>\n
  • Available in different diameters and lengths<\/strong> according to project requirements.<\/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
    Item<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
    Product Name<\/td>\n316 Stainless Steel Imperial Hex Head Bolt<\/td>\n<\/tr>\n
    Material<\/td>\nStainless Steel 316 \/ A4<\/td>\n<\/tr>\n
    Thread Standard<\/td>\nUNC \/ UNF<\/td>\n<\/tr>\n
    Size Type<\/td>\nImperial \/ Inch Size<\/td>\n<\/tr>\n
    Head Type<\/td>\nHex Head<\/td>\n<\/tr>\n
    Thread Type<\/td>\nCoarse Thread \/ Fine Thread<\/td>\n<\/tr>\n
    Finish<\/td>\nPlain Stainless Steel<\/td>\n<\/tr>\n
    Corrosion Resistance<\/td>\nExcellent<\/td>\n<\/tr>\n
    Application<\/td>\nMarine, machinery, construction, automotive, industrial equipment<\/td>\n<\/tr>\n
    Customization<\/td>\nSize, length, thread type, packaging<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    UNC vs UNF Thread<\/h2>\n
    \n
    \n\n\n\n\n\n\n
    Thread Type<\/th>\nFull Name<\/th>\nFeature<\/th>\nCommon Application<\/th>\n<\/tr>\n<\/thead>\n
    UNC<\/td>\nUnified National Coarse<\/td>\nLarger thread pitch, easier installation, better for general fastening<\/td>\nConstruction, machinery, general assembly<\/td>\n<\/tr>\n
    UNF<\/td>\nUnified National Fine<\/td>\nSmaller thread pitch, better vibration resistance and higher tightening precision<\/td>\nAutomotive, equipment, precision fastening<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    Why Choose 316 Stainless Steel?<\/h2>\n

    316 stainless steel offers better corrosion resistance than standard 304 stainless steel, especially in environments exposed to moisture, salt spray, chemicals, or outdoor weather. It is commonly used when long-term durability and rust resistance are important.<\/p>\n

    \n
    \n\n\n\n\n\n\n
    Material<\/th>\nCorrosion Resistance<\/th>\nRecommended Use<\/th>\n<\/tr>\n<\/thead>\n
    304 Stainless Steel<\/td>\nGood<\/td>\nGeneral indoor and outdoor use<\/td>\n<\/tr>\n
    316 Stainless Steel<\/td>\nExcellent<\/td>\nMarine, coastal, chemical, humid, and harsh environments<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    Common Applications<\/h2>\n

    These 316 stainless steel imperial hex head bolts<\/strong> are widely used in many industries where inch-thread fasteners are required.<\/p>\n

    \n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Industry<\/th>\nApplication<\/th>\n<\/tr>\n<\/thead>\n
    Marine Hardware<\/td>\nBoat fittings, docks, coastal equipment<\/td>\n<\/tr>\n
    Construction<\/td>\nSteel structures, outdoor installations<\/td>\n<\/tr>\n
    Machinery<\/td>\nEquipment assembly and maintenance<\/td>\n<\/tr>\n
    Automotive<\/td>\nRepair, modification, engine components<\/td>\n<\/tr>\n
    Chemical Industry<\/td>\nCorrosion-resistant fastening<\/td>\n<\/tr>\n
    Industrial Equipment<\/td>\nHeavy-duty assembly and replacement<\/td>\n<\/tr>\n
    DIY & Maintenance<\/td>\nHome repair, workshop projects<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    Product Advantages<\/h2>\n

    Our 316 Stainless Steel Imperial Hex Head Bolts UNC \/ UNF<\/strong> are designed to provide secure fastening in harsh working conditions. The hex head allows easy installation and removal, while the stainless steel body provides excellent resistance to rust, oxidation, and corrosion.<\/p>\n

    Whether used in marine environments, outdoor construction, machinery repair, or industrial assembly, these bolts deliver reliable performance and long-lasting durability.<\/p>\n

    \n

    Available Options<\/h2>\n
    \n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Option<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
    Material<\/td>\nStainless Steel 316<\/td>\n<\/tr>\n
    Thread<\/td>\nUNC \/ UNF<\/td>\n<\/tr>\n
    Diameter<\/td>\nImperial inch sizes available<\/td>\n<\/tr>\n
    Length<\/td>\nMultiple lengths available<\/td>\n<\/tr>\n
    Head Type<\/td>\nHex Head<\/td>\n<\/tr>\n
    Packaging<\/td>\nBulk packing, small box packing, customized packing<\/td>\n<\/tr>\n
    Surface<\/td>\nPlain stainless steel finish<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
    \n

    Installation Notes<\/h2>\n

    Please confirm the required thread type before ordering.
    UNC and UNF threads are not interchangeable.<\/strong> UNC has a coarse thread pitch, while UNF has a finer thread pitch. Always match the bolt with the correct nut or threaded hole.<\/p>\n

    For better fastening performance, use matching 316 stainless steel nuts and washers<\/strong> when corrosion resistance is required.<\/p>\n

    \n

    FAQ<\/h2>\n

    Q1: What material are these bolts made from?<\/h3>\n

    These bolts are made from 316 stainless steel<\/strong>, also known as A4 stainless steel<\/strong>, which provides excellent corrosion resistance.<\/p>\n

    Q2: What does UNC mean?<\/h3>\n

    UNC means Unified National Coarse Thread<\/strong>. It has a coarse thread pitch and is commonly used for general fastening applications.<\/p>\n

    Q3: What does UNF mean?<\/h3>\n

    UNF means Unified National Fine Thread<\/strong>. It has a finer thread pitch and is often used where stronger thread engagement or vibration resistance is needed.<\/p>\n

    Q4: Are these bolts metric or imperial?<\/h3>\n

    These are imperial size bolts<\/strong>, also called inch size bolts<\/strong>. They are different from metric bolts such as M6, M8, or M10.<\/p>\n

    Q5: Can these bolts be used in marine environments?<\/h3>\n

    Yes. 316 stainless steel is highly suitable for marine, coastal, humid, and outdoor environments because of its excellent corrosion resistance.<\/p>\n

    Q6: Can I use these bolts with standard nuts?<\/h3>\n

    You need to use matching UNC or UNF nuts<\/strong> with the same diameter and thread pitch. Metric nuts or incorrect thread types will not fit.<\/p>\n

    Q7: Are these bolts fully threaded or partially threaded?<\/h3>\n

    Both fully threaded and partially threaded options can be supplied depending on size, length, and customer requirements.<\/p>\n

    Q8: Can you provide custom sizes?<\/h3>\n

    Yes. Different diameters, lengths, thread types, and packaging options can be customized according to your requirements.<\/p>","protected":false},"excerpt":{"rendered":"

    Product Description 316 Stainless Steel Imperial Hex Head Bolts UNC \/ UNF Our 316 Stainless Steel Imperial Hex Head Bolts are high-quality inch-size fasteners designed for applications requiring excellent corrosion resistance, reliable strength, and long service life. Manufactured from premium A4 \/ 316 stainless steel, these bolts are suitable for demanding environments such as marine, […]<\/p>\n","protected":false},"featured_media":5466,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"fastener-coating":[37,95,94],"fastener-material":[43],"fastener-type":[53,474],"product_brand":[],"product_cat":[22],"product_tag":[],"class_list":{"0":"post-5463","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"fastener-coating-original-material","7":"fastener-coating-natural-finish","8":"fastener-coating-original-material-natural-finish","9":"fastener-material-stainless-steel","10":"fastener-type-bolts","11":"fastener-type-hex-head-bolt","12":"product_cat-standard-fasteners","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product\/5463","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=5463"}],"version-history":[{"count":2,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product\/5463\/revisions"}],"predecessor-version":[{"id":5468,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product\/5463\/revisions\/5468"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media\/5466"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=5463"}],"wp:term":[{"taxonomy":"fastener-coating","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/fastener-coating?post=5463"},{"taxonomy":"fastener-material","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/fastener-material?post=5463"},{"taxonomy":"fastener-type","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/fastener-type?post=5463"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product_brand?post=5463"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product_cat?post=5463"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/product_tag?post=5463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}