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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Hexalobular Socket Head Cap Screws

GB /T 2671.2 - 2004

Display drawing:

国标GB /T2671.2 - 2004 GB2671.2 2671.2GB Hexalobular Socket Head Cap Screws
Download CAD Model*
Download CAD Model*
国标GB /T2671.2 - 2004 GB2671.2 2671.2GB Hexalobular Socket Head Cap Screws
Download CAD Model*
Download CAD Model*

 *Models with different eras.

Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs
Default density g/cm3
×

Choose materials based on density.(g/cm3)

  • Carbon Steel 7.85
  • Stainless Steel 8.1
  • Stainless Steel 7.95
  • Stainless Steel 7.7
  • Titanium Alloy 4.5
  • Aluminum Alloy 2.8
  • Copper 8.89


Select here or enter material density on the calculation page.
Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.
Thread Size
d
M2 M2.5 M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20
P Pitch
dk max plain heads
knurled heads
min
da max
ds max
min
L1 max
k max
min
r min
V max
dw min
w min
Socket No.
A Ref.
t max
min
0.4 0.45 0.5 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5
3.8 4.5 5.5 7 8.5 10 13 16 18 21 24 27 30
3.98 4.68 5.68 7.22 8.72 10.22 13.27 16.27 18.27 21.33 24.33 27.33 30.33
3.62 4.32 5.32 6.78 8.28 9.78 12.73 15.73 17.73 20.67 23.67 26.67 29.67
2.6 3.1 3.6 4.7 5.7 6.8 9.2 11.2 13.7 15.7 17.7 20.2 22.4
2 2.5 3 4 5 6 8 10 12 14 16 18 20
1.86 2.36 2.86 3.82 4.82 5.82 7.78 9.78 11.73 13.73 15.73 17.73 19.67
0.51 0.51 0.51 0.6 0.6 0.68 1.02 1.02 1.45 1.45 1.45 1.87 2.04
2 2.5 3 4 5 6 8 10 12 14 16 18 20
1.86 2.36 2.86 3.82 4.82 5.7 7.64 9.64 11.57 13.57 15.57 17.57 19.48
0.10 0.10 0.10 0.20 0.20 0.25 0.40 0.4 0.6 0.6 0.6 0.6 0.8
0.2 0.25 0.3 0.4 0.5 0.6 0.8 1 1.2 1.4 1.6 1.8 2
3.48 4.18 5.07 6.53 8.03 9.38 12.33 15.33 17.23 20.17 23.17 25.87 28.87
0.55 0.85 1.15 1.4 1.9 2.3 3.3 4 4.8 5.8 6.8 7.8 8.6
T6 T8 T10 T20 T25 T30 T45 T50 T55 T60 T70 T80 T90
1.75 2.4 2.8 3.95 4.5 5.6 7.95 8.95 11.35 13.45 15.7 17.75 20.2
0.84 1.04 1.27 1.8 2.03 2.42 3.31 4.02 5.21 5.99 7.01 8 9.2
0.71 0.91 1.01 1.42 1.65 2.02 2.92 3.62 4.82 5.62 6.62 7.5 8.69
Weight of per 1000 steel products(≈kg)
- - - - - - - - - - - - -
Length of Thread b
- - - - - - - - - - - - -

Alternative history

GB 6191 - 1986 GB /T 2671.2 - 2004 GB /T 2671.2 - 2017
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