Threads in Inches
8-32
10-32
1/4"-20
1/4"-28
5/16"-18
5/16"-24
3/8"-16
3/8"-24
7/16"-20
1/2"-13
1/2"-20
5/8"-11
3/4"-10
7/8"-9
1"-8
1 1/4"-7
1 1/2"-6
Metric Sizes