1/4
20
0.281
0.313
0.406
5/16
18
0.5
0.5
1.219
3/8
16
0.5
0.5
0.563
1/2
13
0.813
0.875
0.750
5/8
11
0.844
0.906
0.938
3/4
10
0.906
1.125
1.125
7/8
9
1.063
1.188
1.313
1
8
1.25
1.375
1.5