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Home / Products / Nuts & Washers / Heavy Hex Nuts / Black Hot Dip Galvanized Heavy Hex Nuts
Black Hot Dip Galvanized Heavy Hex Nuts Suppliers
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Struggling to find the right standard part? Let us engineer it. From automotive bolts to unique shaped components, we specialize in custom runs based on your samples or drawings.

  • Black Hot Dip Galvanized Heavy Hex Nuts
  • Black Hot Dip Galvanized Heavy Hex Nuts
  • Black Hot Dip Galvanized Heavy Hex Nuts
  • Black Hot Dip Galvanized Heavy Hex Nuts
  • Black Hot Dip Galvanized Heavy Hex Nuts
  • Black Hot Dip Galvanized Heavy Hex Nuts

Black Hot Dip Galvanized Heavy Hex Nuts

Black Hot-Dip Galvanized Heavy Hex Nuts are large-diameter, heavy-duty hex nuts with a thick hot-dip zinc coating providing maximum corrosion resistance for structural steel, bridge, mining, and outdoor infrastructure applications. The heavy hex profile (wider across flats than standard hex nuts) enables high installation torques with heavy hex wrenches and power tensioners — essential for achieving the specified preload in friction-type structural joints.

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    • Specifications
    • Product Details
    • Company Profile
    Product Name Heavy Hex Jam Nut
    Specification： Measurement System: Metric/ Imperial System
    Grade: 4.8/6.8/8.8/10.9/12.9/B7/L7/B8/B8M/B8T/B8C
    HS Code: 7318160000
    Material： Carbon steel/ Alloy steel/ Stainless Steel
    thread type: M6-M90; Tr thread; Inch thread, etc.
    Place of Origin China
    Surface: Black oxide/ Zinc/ Phosphate/PTFE/ Dacro/Yellow
    Optional material: 35K/SCM435/4340/4145/1045/40Cr/45# etc.
    Standard: GB/T1229; HG/T20634;ASTM A194; ASME B18.2.2
    Customization: OEM/ODM Accepted
    Applicatioon: General Industry/ Heavy Industry
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