GB /T 923-1988 Acorn nuts


Unit: mm
国标GB /T923-1988 GB923 923GB(GB923-1976) Acorn nuts
Screw Thread
d
M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24
P Pitch
h
s max
min
m
e min
e1 max
per 1000 units ≈ kg
0.5 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3
2.5 3 4 5 6 8 10 11 13 14 16 18 19
5.5 7 8 10 13 16 18 21 24 27 30 34 36
5.32 6.78 7.78 9.78 12.73 15.73 17.73 20.67 23.67 26.16 29.16 33 35
6 7 9 11 15 18 22 24 26 29 32 35 38
6.01 7.66 8.79 11.05 14.38 17.77 20.03 23.35 26.75 29.56 32.95 37.29 39.55
5 6 7.2 9.2 13 16 18 20 22 25 28 30 34
0.57 1.04 1.25 2.77 6.73 12.88 17.46 24.66 39.84 48.78 71.96 102 127.8
Alternative history
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