{"id":1483,"date":"2020-04-18T05:44:47","date_gmt":"2020-04-18T05:44:47","guid":{"rendered":"http:\/\/fastenerworld.ae\/?post_type=product&p=949"},"modified":"2026-07-06T08:37:15","modified_gmt":"2026-07-06T08:37:15","slug":"hex-flange-nuts-2","status":"publish","type":"product","link":"https:\/\/asiabolt.om\/ar\/product\/hex-flange-nuts-2\/","title":{"rendered":"Hex Flange Nuts"},"content":{"rendered":"

Hex Flange Nuts \u2013 Hexagonal Flange Nut Manufacturer & Supplier in UAE<\/h4>\n

Asia Bolts Industries LLC is a specialist Hex Flange Nut manufacturer and supplier<\/strong> based in Dubai, UAE, delivering precision-engineered flange nut fastening solutions to the oil & gas, petrochemical, automotive, construction, HVAC, and mechanical engineering sectors across the GCC and global markets since 1997. Our Hex Flange Nuts combine the clamping security of a standard hex nut with an integrated load-spreading flange \u2014 reducing component count, simplifying assembly, and delivering superior joint performance in applications where washer misalignment, surface damage, or vibration-induced loosening are key engineering concerns.<\/p>\n

\n

What Are Hex Flange Nuts?<\/h4>\n

Hex Flange Nuts are hexagonal nuts with a wide circular flange formed integrally on the bearing face of the nut. This flange serves the same function as a flat washer \u2014 distributing the compressive clamping force over a larger bearing area on the joint surface \u2014 but as a single integrated component, eliminating the separate washer handling, positioning, and potential misalignment issues associated with loose washer assemblies.<\/p>\n

They are available in two principal configurations:<\/p>\n

Non-Serrated Hex Flange Nuts<\/strong>
\nA smooth flange underside providing clean, even load distribution without surface marking. Preferred for softer mating materials, painted or coated surfaces, and applications where surface aesthetics matter. Provides washer-replacement functionality without additional vibration resistance beyond the hex nut thread engagement.<\/p>\n

Serrated Hex Flange Nuts<\/strong>
\nThe flange underside incorporates concentric or radial serrations \u2014 hardened teeth that embed into the mating surface when the nut is tightened. This mechanical interlock provides positive resistance to rotation in the loosening direction under vibration and dynamic loading \u2014 effectively combining a hex nut, flat washer, and lock washer into a single fastener component. The most widely specified Hex Flange Nut configuration in the GCC automotive, HVAC, and structural sectors.<\/p>\n

Hex Flange Nuts are widely used in:<\/p>\n

    \n
  • Automotive and vehicle assembly<\/strong> \u2014 engine mounts, exhaust brackets, chassis connections, suspension components<\/li>\n
  • HVAC and air handling systems<\/strong> \u2014 fan housings, compressor frames, ductwork flanges, chiller units<\/li>\n
  • Oil & gas surface equipment<\/strong> \u2014 instrument brackets, skid frames, non-critical process connections<\/li>\n
  • Structural steelwork<\/strong> \u2014 secondary connections, cladding rails, purlins, modular structures<\/li>\n
  • Electrical enclosures and control panels<\/strong> \u2014 cabinet assembly, busbar supports, cable management<\/li>\n
  • Agricultural and heavy machinery<\/strong> \u2014 frame connections, implement attachments, cab assemblies<\/li>\n
  • Construction and infrastructure<\/strong> \u2014 fa\u00e7ade systems, curtain walling, suspended ceiling grids<\/li>\n<\/ul>\n
    \n

    Standards & Specifications<\/h4>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Standard<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
    DIN 6923<\/strong><\/td>\nHexagon nuts with flange \u2014 metric coarse pitch<\/td>\n<\/tr>\n
    ISO 4161<\/strong><\/td>\nHexagon nuts with flange \u2014 coarse pitch thread<\/td>\n<\/tr>\n
    BS EN 1661<\/strong><\/td>\nHexagon nuts with flange \u2014 property classes 6, 8, 10<\/td>\n<\/tr>\n
    ASME B18.2.2<\/strong><\/td>\nHex nuts \u2014 inch series (flange nut variants)<\/td>\n<\/tr>\n
    ISO 898-2<\/strong><\/td>\nMechanical properties of nuts \u2014 carbon and alloy steel<\/td>\n<\/tr>\n
    ASTM A563<\/strong><\/td>\nCarbon and alloy steel nuts<\/td>\n<\/tr>\n
    ISO 7042<\/strong><\/td>\nPrevailing torque all-metal hexagon nuts (associated)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Non-standard flange diameters, custom serration profiles, fine pitch thread variants, and project-specific drawing requirements are handled by our in-house engineering team.<\/p>\n

    \n

    Materials & Grades Available<\/h4>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Material<\/th>\nGrade \/ Specification<\/th>\nTypical Application<\/th>\n<\/tr>\n<\/thead>\n
    Carbon Steel<\/strong><\/td>\nProperty Class 6, 8, 10<\/td>\nGeneral industrial, structural, HVAC<\/td>\n<\/tr>\n
    Alloy Steel<\/strong><\/td>\nASTM A194 2H, 4, 7, 7M<\/td>\nHigh-pressure, high-temperature O&G<\/td>\n<\/tr>\n
    Stainless Steel<\/strong><\/td>\nAISI 304, 304L, 316, 316L<\/td>\nCorrosive environments, marine, chemical<\/td>\n<\/tr>\n
    Duplex Steel<\/strong><\/td>\nUNS S31803 (2205)<\/td>\nOffshore, sour service, coastal environments<\/td>\n<\/tr>\n
    Super Duplex<\/strong><\/td>\nUNS S32750 (2507)<\/td>\nSubsea, highly aggressive offshore service<\/td>\n<\/tr>\n
    Brass<\/strong><\/td>\nCuZn39Pb3<\/td>\nElectrical, instrumentation, low-load assemblies<\/td>\n<\/tr>\n
    Inconel<\/strong><\/td>\nAlloy 718<\/td>\nHigh-temperature, extreme service applications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Surface treatment options include zinc electroplating, hot-dip galvanising (HDG), PTFE coating (Xylan), Geomet, Dacromet, black oxide, nickel plating<\/strong>, and passivation<\/strong> for stainless grades \u2014 selected in accordance with the corrosion exposure category and project specification.<\/p>\n

    \n

    Dimensions & Size Range<\/h4>\n
    \n\n\n\n\n\n\n\n\n\n\n\n
    Parameter<\/th>\nRange<\/th>\n<\/tr>\n<\/thead>\n
    Thread Size<\/strong><\/td>\nM5 to M64 (metric) | 3\/16″ to 2\u00bd” (imperial)<\/td>\n<\/tr>\n
    Thread Pitch<\/strong><\/td>\nMetric coarse (standard) \/ fine pitch on request<\/td>\n<\/tr>\n
    Flange Type<\/strong><\/td>\nSerrated \/ Non-serrated<\/td>\n<\/tr>\n
    Property Class<\/strong><\/td>\n6, 8, 10 (metric) | Grade A, B, C (ASTM A563)<\/td>\n<\/tr>\n
    Finish<\/strong><\/td>\nZinc plated, HDG, plain, PTFE, Geomet, black oxide<\/td>\n<\/tr>\n
    Tolerance<\/strong><\/td>\nGrade A per ISO 4759-1<\/td>\n<\/tr>\n
    Thread Form<\/strong><\/td>\nMetric \/ UNC \/ UNF<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    Left-hand thread and oversized flange diameter variants available on request.<\/p>\n

    Complementary Products<\/h4>\n

    Customers sourcing Hex Flange Nuts from Asia Bolts Industries frequently specify alongside:<\/p>\n

      \n
    • Hex Flange Bolts<\/strong> \u2014 DIN 6921, matched bolt-nut flange assemblies<\/li>\n
    • Plain Flat Washers<\/strong> \u2014 DIN 125, DIN 9021, ASME B18.21.1 for non-serrated applications<\/li>\n
    • Spring Washers<\/strong> \u2014 DIN 127 where additional vibration resistance is required<\/li>\n
    • Hex Bolts & Hex Head Cap Screws<\/strong> \u2014 DIN 931, DIN 933, ASME B18.2.1<\/li>\n
    • Stud Bolts<\/strong> \u2014 ASTM A193 B7 with ASTM A194 2H heavy hex nuts<\/li>\n
    • Nylon Lock Nuts<\/strong> \u2014 DIN 985 for low-temperature vibration-resistant applications<\/li>\n
    • Wedge Locking Nuts<\/strong> \u2014 for critical high-vibration joints beyond flange nut capability<\/li>\n<\/ul>\n

      Asia Bolts can supply complete bolt-nut-washer fastener packages<\/strong> \u2014 including matched Hex Flange Bolt and Hex Flange Nut sets \u2014 from a single ISO certified source, simplifying procurement and consolidating your approved vendor list.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Hex Flange Nuts<\/strong> by Asia Bolts Industries are precision-manufactured hexagonal nuts featuring an integrated circular flange on the bearing face that distributes clamping load over a wider surface area than a standard hex nut \u2014 eliminating the need for a separate washer and providing superior joint stability, reduced surface stress, and improved resistance to loosening in bolted assemblies. Available in serrated<\/strong> and non-serrated<\/strong> flange variants, the serrated version incorporates radial teeth on the flange underside that bite into the mating surface to provide additional vibration resistance without a separate lock washer.<\/p>\n

      Manufactured to DIN 6923, ISO 4161, BS EN 1661<\/strong>, and ASME B18.2.2<\/strong> standards in carbon steel, stainless steel, alloy steel, and duplex grades across metric and imperial thread forms, our Hex Flange Nuts are produced at our Dubai Investment Park<\/strong> facility under ISO 9001, ISO 45001, and ISO 14001<\/strong> certified quality systems and exported to 70+ countries<\/strong> across the GCC, Middle East, Africa, and Asia.<\/p>\n

      \u2705 Serrated & non-serrated flange variants available
      \n\u2705 Carbon steel, stainless steel, alloy & duplex grades
      \n\u2705 Pairs directly with Hex Flange Bolts for complete flange assemblies
      \n\u2705 Standard & custom dimensions manufactured on request
      \n\u2705 Full MTC documentation & batch traceability provided
      \n\u2705 ISO 9001 \u00b7 ISO 45001 \u00b7 ISO 14001 certified
      \n\u2705 Approved vendor: Saudi Aramco | ADNOC | SABIC<\/p>","protected":false},"featured_media":1007,"template":"","meta":{"_kadence_starter_templates_imported_post":false},"product_brand":[],"product_cat":[34],"product_tag":[95,96],"class_list":["post-1483","product","type-product","status-publish","has-post-thumbnail","product_cat-nuts","product_tag-din-6923","product_tag-hex-flange-nuts","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/asiabolt.om\/ar\/wp-json\/wp\/v2\/product\/1483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/asiabolt.om\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/asiabolt.om\/ar\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/asiabolt.om\/ar\/wp-json\/wp\/v2\/media\/1007"}],"wp:attachment":[{"href":"https:\/\/asiabolt.om\/ar\/wp-json\/wp\/v2\/media?parent=1483"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/asiabolt.om\/ar\/wp-json\/wp\/v2\/product_brand?post=1483"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/asiabolt.om\/ar\/wp-json\/wp\/v2\/product_cat?post=1483"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/asiabolt.om\/ar\/wp-json\/wp\/v2\/product_tag?post=1483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}