GB /T 2160 - 1991 The Parts And Units Of Jigs And Fixtures-holddown Screw


Unit: mm
国标GB /T2160 - 1991 GB2160 2160GB The Parts And Units Of Jigs And Fixtures-holddown Screw
Nominal Diameter
d
M4 M5 M6 M8 M10 M12 M16 M20 M24 M30
d1
d2
d3 min
max
z
L1
L2
L3
L4
L5
SR
SR1
b
t
2.8 3.5 4.5 6 7 9 12 16 18 18
M4 M5 M6 M8 M10 M12 M16 M20 M24 M24
- 1.5 2 3 4 5 6 6 8 8
- 1.51 2.01 3.01 4.012 5.012 6.012 6.012 8.015 8.015
3 3 4 5 6 7 8 10 12 12
- - 7 8.5 10 13 15 18 20 20
- - 2.1 2.5 2.5 2.5 3.4 5 5 5
- - 2.2 2.6 3.2 4.8 6.3 7.5 8.5 8.5
5 6.5 6.5 9 11 13.5 15 17 20 20
2 3 3 4 5 6.5 8 9 11 11
4 5 6 8 10 12 16 20 25 25
3 4 5 6 7 9 12 16 18 18
0.6 0.8 0.8 1.2 1.5 2 2 3 4 4
1.4 1.8 2 2.5 3 3.5 4.5 6 7 7
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