Hot dip galvanized 4.8 grade DIN933 hexagon bolt diameter range M4-M52

Short Description:

  • Product Name: HDG 4.8 grade DIN933 Hexagon Bolt
  • Key Words: 4.8 grade Bolt, DIN933, high strength bolt with heat treatment, HDG hexagon bolt
  • Size: Diameter M4- M52, Length 10-500mm
  • Material: Q195, Q235, all from china large state-owned factory with quality certificates
  • Strength: Real Grade 4.8
  • Surface Treatment: Hot dip galvanized surface, zinc thickness above 50um
  • Thread Length: Fully Thread
  • Customization: Customized head mark is available
  • Packing: 25kgs or 50kgs Bulk Woven Bag + Polywood Pallet
  • Application: Construction, electric power line, new energy industry, auto industry, etc.
  • Product Detail

    Surface treatment

    p

    Related Knowlege :
    The bolt threading size after hot dip galvanized surface treatment process will become bigger than zinc plated , so HDG bolt thread must match the over size hex nut or the nut can not be threaded up. The hot dip galvanized surface can offer very strong anti-rust performance than electric zinc plated or black oxide surface.
    The 4.8 grade bolt was produced by low carbon steel material, which is used for where only need small strength hardness

    Product Parameter

    Screw Thread d M4 M5 M6 (M7) M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27) M30 (M33) M36 (M39) M42 (M45) M48 (M52)
    P Pitch 0.7 0.8 1 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 3.5 4 4 4.5 4.5 5 5
    a max 2.1 2.4 3 3 3.75 4.5 5.25 6 6 7.5 7.5 7.5 9 9 10.5 10.5 12 12 13.5 13.5 15 15
    c min 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3
    max 0.4 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1 1 1 1 1
    da max 4.7 5.7 6.8 7.8 9.2 11.2 13.7 15.7 17.7 20.2 22.4 24.4 26.4 30.4 33.4 36.4 39.4 42.4 45.6 48.6 52.6 56.6
    dw Grade A min 5.9 6.9 8.9 9.6 11.6 15.6 17.4 20.5 22.5 25.3 28.2 30 33.6 - - - - - - - - -
    Grade B min 5.7 6.7 8.7 9.4 11.4 15.4 17.2 20.1 22 24.8 27.7 29.5 33.2 38 42.7 46.5 51.1 55.9 59.9 64.7 69.4 74.2
    e Grade A min 7.66 8.79 11.05 12.12 14.38 18.9 21.1 24.49 26.75 30.14 33.53 35.72 39.98 - - - - - - - - -
    Grade B min 7.5 8.63 10.89 11.94 14.2 18.72 20.88 23.91 26.17 29.56 32.95 35.03 39.55 45.2 50.85 55.37 60.79 66.44 71.3 76.95 82.6 88.25
    k Nominal Size 2.8 3.5 4 4.8 5.3 6.4 7.5 8.8 10 11.5 12.5 14 15 17 18.7 21 22.5 25 26 28 30 33
    Grade A min 2.68 3.35 3.85 4.65 5.15 6.22 7.32 8.62 9.82 11.28 12.28 13.78 14.78 - - - - - - - - -
    max 2.92 3.65 4.15 4.95 5.45 6.56 7.68 8.98 10.18 11.72 12.72 14.22 15.22 - - - - - - - - -
    Grade B min 2.6 3.26 3.76 4.56 5.06 6.11 7.21 8.51 9.71 11.15 12.15 13.65 14.65 16.65 18.28 20.58 22.08 24.58 25.58 27.58 29.58 32.5
    max 3 3.74 4.24 5.04 5.54 6.69 7.79 9.09 10.29 11.85 12.85 14.35 15.35 17.35 19.12 21.42 22.92 25.42 26.42 28.42 30.42 33.5
    k1 min 1.9 2.28 2.63 3.19 3.54 4.28 5.05 5.96 6.8 7.8 8.5 9.6 10.3 11.7 12.8 14.4 15.5 17.2 17.9 19.3 20.9 22.8
    r min 0.2 0.2 0.25 0.25 0.4 0.4 0.6 0.6 0.6 0.6 0.8 0.8 0.8 1 1 1 1 1 1.2 1.2 1.6 1.6
    s max=nominal size 7 8 10 11 13 17 19 22 24 27 30 32 36 41 46 50 55 60 65 70 75 80
    Grade A min 6.78 7.78 9.78 10.73 12.73 16.73 18.67 21.67 23.67 26.67 29.67 31.61 35.38 - - - - - - - - -
    Grade B min 6.64 7.64 9.64 10.57 12.57 16.57 18.48 21.16 23.16 26.15 29.16 31 35 40 45 49 53.8 58.8 63.1 68.1 73.1 78.1

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