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749_O64c2K_ASME-b18-3.jpg

Dimensions in mm - source ASMJE B18.3 Table 5A

Publication date: 2003

D Nominal size or Basic screw Diameter S nom T min

R nom oval point radius

A cup end flat point diameters P Q
Diameter Length
max min max min max min
0 0.028 0.050 0.045 0.033 0.027 0.040 0.037 0.017 0.013
1 0.035 0.060 0.055 0.040 0.033 0.049 0.045 0.021 0.01
2
3
4
5
5
6
6
8
10
1/4
5/16
3/8
7/16
1/2
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
1-3/4
2



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