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Mushroom Head Square Neck Bolts

GB /T 14 - 2013

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国标GB /T14 - 2013 GB14 14GB Mushroom Head Square Neck Bolts
Nominal Length L Tips:seclect Nominal Length L and get Thread length.
Thread Size
d
M5 M6 M8 M10 M12 M16 M20
P Pitch
b L≤125
125<L≤200
L>200
dk max=nominal size
min
ds max
k1 max
min
k max
min
r max
s max
min
0.80 1.00 1.25 1.50 1.75 2.00 2.50
16 18 22 26 30 38 46
- - 28 32 36 44 52
- - - - - 57 65
13 16 20 24 30 38 46
11.9 14.9 18.7 22.7 28.7 36.4 44.4
5.48 6.48 8.58 10.58 12.7 16.7 20.84
4.1 4.6 5.6 6.6 8.8 12.9 15.9
2.9 3.4 4.4 5.4 7.2 11.1 14.1
3.1 3.6 4.6 5.8 6.8 8.9 10.9
2.5 3 4 5 6 8 10
0.4 0.5 0.8 0.8 1.2 1.2 1.6
5.48 6.48 8.58 10.58 12.7 16.7 20.84
4.52 5.52 7.42 9.42 11.3 15.3 19.16
Length of Thread b
- - - - - - -
①,dsmin≈Thread diameter

Similar Standards

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