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(Non-preferred) dimensions in parentheses.

Flat Countersunk Square Neck Bolts

GB /T 10 - 1988

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国标GB /T10 - 1988 GB10 10GB Flat Countersunk Square Neck Bolts

 *Models with different eras.

Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs
Default density g/cm3
Nominal Length L Tips:seclect Nominal Length L and get Weight Thread length.
Screw Thread
d
M6 M8 M10 M12 M16 M20
P Pitch
b L≤125
125<L≤200
dk max
min
k max
min
s max
min
x max
1.00 1.25 1.50 1.75 2.00 2.50
18 22 26 30 38 46
/ 28 32 36 44 52
11.05 14.55 17.55 21.65 28.65 36.80
9.95 13.45 16.45 20.35 27.35 35.20
6.10 7.25 8.45 11.05 13.05 15.05
5.3 6.35 7.55 9.95 11.95 13.95
6.36 8.36 10.36 12.43 16.43 20.52
5.84 7.80 9.80 11.76 15.76 19.72
2.5 3.2 3.8 4.2 5 6.3
Weight of per 1000 steel products(≈kg)
- - - - - -
Length of Thread b
- - - - - -
①,The diameter of the unthreaded part is approximately equal to the pitch diameter or major diameter of the thread.

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