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Click Specification

(Non-preferred) dimensions in parentheses.

Unit:mm

Welding Square Nuts

Q 371B

Display drawing:

汽标代号Q 371B Q371B 371BQ Welding Square Nuts
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Download CAD Model*

 *Models with different eras.

Thread Size
D
M4 M5 M6 M8 M10 M12 (M14) M16
e min
h1 max
min
m max
min
s max
min
b max
min
d1 max
min
d2 max
d3 min
h2 max
min
Ensure the load(N)
9 12 13 18 22 25 28 32
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
3.5 4.2 5 6.5 8 9.5 11.4 13
3.2 3.9 4.7 6.14 7.64 9.14 10.97 12.57
7 9 10 14 17 19 22 24
6.64 8.64 9.64 13.57 16.57 18.48 21.48 23.48
0.95 1.15 1.35 1.65 2 2.2 2.7 2.7
0.65 0.85 1.05 1.35 1.6 1.8 2.3 2.3
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
4.2 5.25 6.3 8.4 10.5 12.6 14.7 16.8
6.4 8.2 9.1 12.8 15.6 17.4 20.4 22.4
1.3 1.5 1.8 2 2.2 3 3.2 4
0.4 0.6 0.7 1.1 1.25 1.75 1.75 2
6800 11600 15500 28300 44800 65300 89700 123000

Alternative history

Q 371 Q 371B
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