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  • High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ISO7380 Button Head Hex Socket Bolts
  • High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ISO7380 Button Head Hex Socket Bolts
  • High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ISO7380 Button Head Hex Socket Bolts
  • High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ISO7380 Button Head Hex Socket Bolts
  • High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ISO7380 Button Head Hex Socket Bolts
  • High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ISO7380 Button Head Hex Socket Bolts
  • High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ISO7380 Button Head Hex Socket Bolts
  • High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ISO7380 Button Head Hex Socket Bolts

High Strength Grade 4.8 8.8 10.9 12.9 Black Oxide ISO 7380 Button Head Hex Socket Bolts


  • Moq: Confirmed by product, size, grade, finish and quantity
  • Price: Quoted to specification, quantity, coating, packing and Incoterm
  • Package: Bags, boxes, cartons, pallets or customer-specified export packing
  • Export port: Tianjin, Qingdao or Shanghai, as confirmed in the quotation
  • Delivery date: Confirmed after specification, quantity and production review
  • Payment method: T/T or other terms stated in the official PI or contract
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    Product Photos and Information

    High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ( (3)
    Name Hex socket head screw bolts
    Standards DIN ISO ANC BSW JIS etc.
    Size M3-M50
    Length 15-500
    Materials Carbon Steel/Stainless Steel
    Strength level 4.8 8.8 10.9 12.9 A2-70 A4-70 A4-80
    Surface finish ZPHDGBLACKDacromet etc.
    Samples Subject to availability and agreement
    High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ( (5)
    High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ( (6)
    High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ( (11)
    High Strengh Grade 4.8 8.8 10.9 12.9 Black Oxide ( (8)

    Product Standards

    detail12
    Hexagon socket head cap screws ISO 7380
    Thread specification M3 M4 M5 M6 M8 M10 M12 M16
    d
    P pitch 0.5 0.7 0.8 1 1.25 1.5 1.75 2
    a maximum value 1 1.4 1.6 2 2.5 3 3.5 4
    minimum 0.5 0.7 0.8 1 1.25 1.5 1.75 2
    dk maximum value 5.7 7.6 9.5 10.5 14 17.5 21 28
    minimum 5.4 7.24 9.14 10.07 13.57 17.07 20.48 27.48
    e ① minimum 2.3 2.87 3.44 4.58 5.72 6.86 9.15 11.43
    k maximum value 1.65 2.2 2.75 3.3 4.4 5.5 6.6 8.8
    minimum 1.4 1.95 2.5 3 4.1 5.2 6.24 8.44
    s Nominal 2 2.5 3 4 5 6 8 10
    maximum value 2.045 2.56 3.071 4.084 5.084 6.095 8.115 10.115
    minimum 2.02 2.52 3.02 4.02 5.02 6.02 8.025 10.025
    t minimum 1.04 1.3 1.56 2.08 2.6 3.12 4.16 5.2
    Minimum tensile load (N) Level 12.9 4910 8506 13800 19600 35700 56600 82400 154000

    About Us

    YONGYI Fasteners supports industrial and project fastener inquiries from Yongnian, Handan, China.

    Our published company certificates, factory photographs, production information and selected supply references help buyers evaluate manufacturing and quality-control capabilities.

    For a quotation, provide the product standard or drawing, size, material or grade, surface finish, quantity, packing requirement and destination.

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    Add：Dongmingyang Industrial Park, Mingguan Town, Yongnian District, Handan City, Hebei Province China

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    WhatsApp：+86 18830064300

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