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ISO 8748

ISO 8748, Heavy Duty Coiled Spring Pin standard.

ISO 8748 Heavy Duty Coiled Spring Pin Drawing

ISO 8748 Heavy Duty Coiled Spring Pin dimension as below:

d1 d1 max.
before mounting
d1 min. d2  max.
before mounting
a s
1.5 1.71 1.61 1.4 0.5 0.17
2 2.21 2.11 1.9 0.7 0.22
2.5 2.73 2.62 2.4 0.7 0.28
3 3.25 3.12 2.9 0.9 0.33
3.5 3.79 3.64 3.4 1 0.39
4 4.3 4.15 3.9 1.1 0.45
5 5.35 5.15 4.85 1.3 0.56
6 6.4 6.18 5.85 1.5 0.67
8 8.55 8.25 7.8 2 0.9
10 10.65 10.3 9.75 2.5 1.1
12 12.75 12.35 11.7 3 1.3
14 14.85 14.4 13.6 3.5 1.6
16 16.9 16.4 15.6 4 1.8
20 21 20.4 19.6 4.5 2.2