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GB /T 805-1988 Tight nuts


Unit: mm
国标GB /T805-1988 GB805 805GB(GB805-1976) Tight nuts
Screw Thread
d
M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M36 M42 M48
P Pitch
d max
min
s max
min
d1
k
e
per 1000 units ≈ kg
1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3 3 3.5 4 4.5 5
5.3 7.16 8.86 10.73 12.43 14.43 15.93 17.93 20.02 21.52 24.52 27.02 32.62 38.12 43.62
5 6.8 8.5 10.3 12 14 15.5 17.5 19.5 21 24 26.5 32 37.5 43
10 13 16 18 21 24 27 30 34 36 41 46 55 65 75
9.73 12.73 15.73 17.73 20.67 23.67 26.16 29.16 33 35 40 45 53.8 63.8 73.1
7.5 9.5 12 14 16 18 20.5 22.5 25 27 30 34 40 47 54
3 4 5 5 6 6 7 7 7 9 9 9 12 12 14
11.5 16.2 19.6 21.9 25.4 27.7 31.2 34.6 36.9 41.6 47.3 53.1 63.5 75 86.5
0.52 1.26 2.24 2.99 4.68 5.16 8.4 9.66 10.4 17.46 20.94 29.06 43.99 72.37 97.16
Relevant Standards
1
扣紧螺母
[DIN]
DIN 7967-1970
Self-locking counter nuts
2
扣紧螺母
[UNI]
UNI 8835-1985
Self-locking counter nuts