GB /T 13680 - 1992 Square Weld Nuts


Unit: mm
国标GB /T13680 - 1992 GB13680 13680GB Square Weld Nuts
Screw Thread
d
M4 M5 M6 M8 M10 M12 (M14) M16
P Pitch(Coarse thread)
Pitch(Fine thread)
Pitch(Fine thread)
b max
min
b1 max
min
d3 max
min
da max
min
e min
h max
min
h1 max
min
m max
min
s max
min
n min
max
Ensure the load(N)
per 1000 units ≈ kg Type A
Type B
0.7 0.8 1 1.25 1.5 1.75 2 2
/ / / 1 1.25 1.5 1.5 1.5
/ / / / 1 1.25 / /
0.8 1.0 1.2 1.5 1.8 2.0 2.5 2.5
0.5 0.7 0.9 1.2 1.4 1.6 2.1 2.1
1.5 1.5 1.5 1.5 1.5 2 / /
0.3 0.3 0.3 0.3 0.3 0.5 / /
5.18 6.18 7.72 10.22 12.77 13.77 17.07 19.13
5 6 7.5 10 12.5 13.5 16.8 18.8
4.6 5.75 6.75 8.75 10.8 13 15.1 17.3
4 5 6 8 10 12 14 16
8.63 9.93 12.53 16.34 20.24 22.84 26.21 30.11
0.7 0.9 0.9 1.1 1.3 1.5 1.5 1.7
0.5 0.7 0.7 0.9 1.1 1.3 1.3 1.5
1 1 1 1 1 1.2 / /
0.8 0.8 0.8 0.8 0.8 1 / /
3.5 4.2 5 6.5 8 9.5 11 13
3.2 3.9 4.7 6.14 7.64 9.14 10.3 12.3
7 8 10 13 16 18 21 24
6.64 7.64 9.64 12.57 15.57 17.57 20.16 23.16
0.3 0.3 0.3 0.5 0.5 0.5 / /
0.5 0.5 0.5 1 1 1 / /
6800 11000 15500 28300 44800 65300 89700 123000
1.09 1.48 2.18 4.55 8.13 11.79 16.35 22.24
0.79 1.18 2.37 5.16 9.77 13.95 / /
①,Try not to use the specifications in parentheses
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