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Click Specification

(Non-preferred) dimensions in parentheses.

Hexagon Socket Cap Head Screws

GB 70 - 1985

Display drawing:

 *Models with different eras.

Nominal Length L Tips:seclect Nominal Length L and get Thread length.
Screw Thread
d
M1.6 M2 M2.5 M3 M4 M5 M6 M8
P Pitch
dk max
min
ds max
min
k max
min
s Nominal Size
min
max 12.9
other
t min
0.35 0.4 0.45 0.5 0.7 0.8 1 1.25
3.14 3.98 4.68 5.68 7.22 8.72 10.22 13.27
2.86 3.62 4.32 5.32 6.78 8.28 9.78 12.73
1.60 2.00 2.50 3.00 4.00 5.00 6.00 8.00
1.46 1.86 2.36 2.86 3.82 4.82 5.82 7.78
1.60 2.00 2.50 3.00 4.00 5.00 6.0 8.00
1.46 1.86 2.36 2.86 3.82 4.82 5.7 7.64
1.5 1.5 2 2.5 3 4 5 6
1.520 1.520 2.020 2.52 3.020 4.020 5.020 6.020
1.545 1.545 2.045 2.56 3.080 4.095 5.095 6.095
1.56 1.56 2.06 2.58 3.08 4.095 5.14 6.14
0.7 1 1.1 1.3 2 2.5 3 4
Length of Thread b
- - - - - - - -
Screw Thread
d
M10 M12 (M14) M16 M20 M24 M30 M36
P Pitch
dk max
min
ds max
min
k max
min
s Nominal Size
min
max 12.9
other
t min
1.5 1.75 2 2 2.5 3 3.5 4
16.27 18.27 21.33 24.33 30.33 36.39 45.39 54.46
15.73 17.73 20.67 23.67 29.67 35.61 44.61 53.54
10.00 12.00 14.00 16.00 20.00 24.00 30.00 36.00
9.78 11.73 13.73 15.73 19.67 23.67 29.67 35.61
10.00 12.00 14.00 16.00 20.00 24.00 30.00 36.00
9.64 11.57 13.57 15.57 19.48 23.48 29.48 35.38
8 10 12 14 17 19 22 27
8.025 10.025 12.032 14.032 17.05 19.065 22.065 27.065
8.115 10.115 12.142 14.142 17.23 19.275 22.275 27.275
8.175 10.175 12.212 14.212 17.23 19.275 22.275 27.275
5 6 7 8 10 12 15.5 19
Length of Thread b
- - - - - - - -

Suppliers

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Yuyao Hutson Metal Product Co., Ltd.
  • Ma Huazhen/Xu Tianyang

  • +86-13095941973, 18268663653

  • +86-574-62761228

  • Material: stainless steel, A2-70, A2-80, A4-70, A4-80, A2(302, 303, 304), A4(316), 410, 430; Complete specifications
Suzhou Yongchuang Fastener Factory
  • Mr. Tang

  • +86-15298892886

  • +86-512-66700967

  • Material: stainless steel, carbon steel; Nominal diameter: M1-M14; Nominal length: 5-400mm
GotopScrews International Co., Limited
  • Manager Zhuang

  • +86-13008864675

  • +86-755-89505088

  • aterial: carbon steel, alloy steel, stainless steel, copper, aluminum, titanium; Specifications: M0.6~M6; Length: 1~60mm; Surface Treatment: galvanizing, nickel plating, zinc nickel alloy, electrophoresis, dacromet, CD grain, PVD, etc.

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