| Dia of Thread |
F |
G |
H |
| Width Across Flats |
Width Across Corner |
Thickness |
| 1 |
1-1/2 |
1.732 |
3 |
| 1-1/8 |
1-11/16 |
1.949 |
3-3/8 |
| 1-1/4 |
1-7/8 |
2.165 |
3-3/4 |
| 1-3/8 |
2-1/16 |
2.382 |
4-1/8 |
| 1-1/2 |
2-1/4 |
2.598 |
4-1/2 |
| 1-5/8 |
2-9/16 |
2.959 |
4-7/8 |
| 1-3/4 |
2-3/4 |
3.175 |
5-1/4 |
| 1-7/8 |
2-15/16 |
3.392 |
5-5/8 |
| 2 |
3-1/8 |
3.608 |
6 |
| 2-1/4 |
3-1/2 |
4.041 |
6-3/4 |
| 2-1/2 |
3-7/8 |
4.474 |
7-1/2 |
| 2-3/4 |
4-1/4 |
4.907 |
8-1/4 |
| 3 |
4-5/8 |
5.340 |
9 |
| 3-1/4 |
5 |
5.773 |
9-3/4 |
| 3-1/2 |
5-3/8 |
6.206 |
10-1/2 |
| 3-3/4 |
5-3/4 |
6.639 |
11-1/4 |
| 4 |
6-1/8 |
7.072 |
12 |
| 4-1/4 |
6-1/2 |
7.506 |
12-3/4 |
| 4-1/2 |
6-7/8 |
7.939 |
13-1/2 |
| 4-3/4 |
7-1/4 |
8.372 |
14-1/4 |
| 5 |
7-5/8 |
8.805 |
15 |
|
