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Hexagonal slotted reduced height nuts

GB 60 - 1966

Display drawing:

 *Models with different eras.

Screw Thread
d
M12 M14 M16 M18 M20 M22 M24 M27 M30 M36 M42 M48
m
n Nominal Size
max
min
s
w max=nominal size
min
10 11 13 14 14 15 15 17 19 20 23 25
3.5 3.5 5 5 5 7 7 7 8 8 10 10
3.8 3.8 5.3 5.3 5.3 7.38 7.38 7.38 8.38 8.38 10.38 10.38
3.4 3.4 4.9 4.9 4.9 6.9 6.9 6.9 7.9 7.9 9.9 9.9
19 22 24 27 30 32 36 41 46 55 65 75
6 6 7 8 8 9 9 11 11 13 14 16
5.52 5.52 6.44 7.44 7.44 8.44 8.44 10.3 10.3 12.3 13.3 15.3