1/4
20
0.281
0.313
1
0.5
0.21875
0.406
5/16
18
0.5
0.5
1.25
0.625
0.28125
1.219
3/8
16
0.5
0.5
1.5
0.75
0.34375
0.563
1/2
13
0.813
0.875
2
1
0.4375
0.750
5/8
11
0.844
0.906
2.3125
1.25
0.53125
0.938
3/4
10
0.906
1.125
2.75
1.5
0.625
1.125
7/8
9
1.063
1.188
3.5
1.75
0.875
1.313
1
8
1.25
1.375
3.75
2
0.875
1.5