Nominal Size or Basic Major Diameter of Thread | Threads per inch | Wing Spread, A | Wing Height, B | Wing Thickness, C | Minimum Between Wings, D | Boss Diameter, E | Minimum Boss Height, G | Minimum Wall Height, H | Stock Thickness, T | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | |||||
8 | 32 and 36 | 0.78 | 0.72 | 0.40 | 0.34 | 0.18 | 0.14 | 0.25 | 0.41 | 0.35 | 0.08 | 0.12 | 0.04 | 0.03 |
10 | 24 and 32 | 0.91 | 0.85 | 0.47 | 0.41 | 0.21 | 0.17 | 0.34 | 0.53 | 0.47 | 0.10 | 0.12 | 0.04 | 0.03 |
12 | 24 and 28 | 1.09 | 1.03 | 0.47 | 0.41 | 0.21 | 0.17 | 0.34 | 0.53 | 0.47 | 0.10 | 0.12 | 0.05 | 0.04 |
1/4 | 20 and 28 | 1.11 | 1.05 | 0.50 | 0.44 | 0.25 | 0.21 | 0.34 | 0.62 | 0.56 | 0.11 | 0.12 | 0.05 | 0.04 |
5/16 | 18 and 24 | 1.30 | 1.24 | 0.59 | 0.53 | 0.30 | 0.26 | 0.46 | 0.73 | 0.67 | 0.14 | 0.18 | 0.06 | 0.05 |
3/8 | 16 and 24 | 1.41 | 1.34 | 0.67 | 0.61 | 0.34 | 0.30 | 0.69 | 0.83 | 0.77 | 0.16 | 0.18 | 0.06 | 0.05 |