ISO 10642 - 1997 Hexagon socket countersunk head screws


Unit: mm
Screw Thread
d
M3 M4 M5 M6 M8 M10 M12 (M14) M16 M20
P Pitch
b ref.
ds max
min
dk theor. max.
actual min.
k max
s Nominal Size
max(12.9 class )
max(Other class )
min
t min
0.5 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5
18 20 22 24 28 32 36 40 44 52
3 4 5 6 8 10 12 14 16 20
2.86 3.82 4.82 5.82 7.78 9.78 11.73 13.73 15.73 19.67
6.72 8.96 11.20 13.44 17.92 22.40 26.88 30.80 33.60 40.32
5.54 7.53 9.43 11.34 15.24 19.22 23.12 26.52 29.01 36.05
1.86 2.48 3.1 3.72 4.96 6.2 7.44 8.4 8.8 10.16
2 2.5 3 4 5 6 8 10 10 12
2.045 2.56 3.071 4.084 5.084 6.095 8.115 10.115 10.115 12.142
2.060 2.58 3.080 4.095 5.140 6.140 8.175 10.175 10.175 12.212
2.020 2.52 3.020 4.020 5.020 6.020 8.025 10.025 10.025 12.032
1.1 1.5 1.9 2.2 3 3.6 4.3 4.5 4.8 5.6
①,e mim=1.14 S min
Alternative history
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