ANSI/ASME B 18.3.4M - 1986 (R2008) Hexagon Socket Button Head Cap Screws (Metric Series)


Unit: mm
Thread Size
d
M3 M4 M5 M6 M8 M10 M12 M16
P Pitch
dk max
min
k max
min
s Nominal Size
t min
e min
0.5 0.7 0.8 1 1.25 1.5 1.75 2
5.70 7.60 9.50 10.50 14.00 17.50 21.00 28.00
5.40 7.24 9.14 10.07 13.57 17.07 20.48 27.48
1.65 2.20 2.75 3.30 4.40 5.50 6.60 8.80
1.43 1.95 2.50 3.00 4.05 5.20 6.24 8.44
2.0 2.5 3.0 4.0 5.0 6.0 8.0 10.0
1.04 1.30 1.56 2.08 2.60 3.12 4.16 5.20
2.3 2.87 3.44 4.58 5.72 6.86 9.15 11.5
①,a ≤ 2P
Alternative history
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