ASME B18.31.2 Imperial Continous Thread, Double End Reduced and Full Body Studs
| Nominal Size | BM | B | |||
|---|---|---|---|---|---|
| Tap End Thread Length | Minimum Nut End Full Thread Length | ||||
| Min | Max | L≤ 10 | 10 < L ≤ 10 | L >16 | |
| 1/4" | 8.9 | 10.16 | 19.05 | 25.4 | 38.1 |
| 5/16" | 11.18 | 12.64 | 22.23 | 28.58 | 41.28 |
| 3/8" | 13.52 | 15.08 | 25.4 | 31.75 | 44.45 |
| 7/16" | 15.75 | 17.57 | 28.58 | 34.93 | 47.63 |
| 1/2" | 17.99 | 20.11 | 31.75 | 38.1 | 50.8 |
| 9/16" | 20.38 | 22.75 | 34.93 | 41.28 | 53.98 |
| 5/8" | 22.66 | 24.96 | 38.1 | 44.45 | 57.15 |
| 3/4" | 27.31 | 29.84 | 44.45 | 50.8 | 63.5 |
| 7/8" | 31.96 | 34.74 | 50.8 | 57.15 | 69.85 |
| 1" | 36.53 | 39.67 | 57.15 | 63.5 | 76.2 |
| 1 1/8" | 41.28 | 44.45 | 63.5 | 69.85 | 82.55 |
| 1 1/4" | 46.05 | 49.22 | 69.85 | 76.2 | 88.9 |
| 1 3/8" | 50.8 | 53.97 | 76.2 | 82.55 | 95.25 |
| 1 1/2" | 55.58 | 58.75 | 82.55 | 88.9 | 101.6 |
| 1 5/8" | 60.33 | 63.5 | 88.9 | 95.25 | 107.95 |
| 1 3/4" | 65.1 | 68.27 | 95.25 | 101.6 | 114.3 |
| 1 7/8" | 69.85 | 73.02 | 101.6 | 107.95 | 120.65 |
| 2" | 74.3 | 78.1 | 107.95 | 114.3 | 127 |
| 2 1/4" | 83.82 | 87.63 | 120.65 | 127 | 139.7 |
| 2 1/2" | 93.35 | 97.15 | 133.35 | 139.7 | 152.4 |
| 2 3/4" | 102.87 | 106.68 | 146.05 | 152.4 | 165.1 |
| 3" | 112.4 | 116.2 | - | 165.1 | 177.8 |
| 3 1/4" | 121.29 | 126.36 | - | 177.8 | 190.5 |
| 3 1/2" | 130.81 | 135.89 | - | 190.5 | 203.2 |
| 3 1/4" | 140.34 | 145.41 | - | 203.2 | 215.9 |
| 4" | 149.86 | 154.94 | - | 215.9 | 228.6 |