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(Non-preferred) dimensions in parentheses.

Square Head Bolts

JIS B 1182 - 1995

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日标JIS B1182 - 1995 JIS1182 1182JIS Square Head Bolts
Screw Thread
d
M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24
P Pitch
ds max=nominal size
min
k Nominal Size
max
min
s max=nominal size
min
1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3
6 8 10 12 14 16 18 20 22 24
5.8 7.8 9.8 11.75 13.75 15.75 17.75 19.65 21.65 23.65
4 5.5 7 8 9 10 12 13 14 15
4.25 5.75 7.3 8.3 9.3 10.35 12.35 13.35 14.35 15.35
3.75 5.25 6.7 7.7 8.7 9.65 11.65 12.65 13.65 14.65
10 13 17 19 22 24 27 30 32 36
9.4 12.3 16.3 18.2 21.2 23.2 26.2 29.2 31 35

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