1/4
20
0.625
0.35
5/16
18
0.781
0.429
3/8
16
0.938
0.509
7/16
14
1.094
0.589
1/2
12
1.25
0.699
5/8
11
1.562
0.859
3/4
10
1.875
1.018
7/8
9
2.188
1.209
1
8
2.5
1.369