Nominal Size | Square Head | |||
---|---|---|---|---|
A | B | C | ||
in | mm | mm | mm | mm |
1/8 | 6 | 10 | 6 | 7 |
1/4 | 8 | 11 | 6 | 10 |
3/8 | 10 | 13 | 8 | 11 |
1/2 | 15 | 14 | 10 | 14 |
3/4 | 20 | 16 | 11 | 16 |
1 | 25 | 19 | 13 | 21 |
1 1/4 | 32 | 21 | 14 | 24 |
1 1/2 | 40 | 21 | 16 | 29 |
2 | 50 | 22 | 18 | 33 |
2 1/2 | 65 | 27 | 19 | 38 |
3 | 80 | 29 | 21 | 43 |
4 | 100 | 32 | 32 | 64 |