Straight pipe taps (NPS) ANSI B94.9
| Size | Overall Length | Thread Length |
| 1/16-27 | 2-1/8 | 11/16 |
| 1/8-27 | 2-1/8 | 3/4 |
| 1/4-18 | 2-7/16 | 1-1/16 |
| 1/2-14 | 3-1/8 | 1-3/8 |
| 3/4-14 | 3-1/4 | 1-3/8 |
| 1-11-1/2 | 3-3/4 | 1-3/4 |
| 1-1/2-11-1/2 | 4-1/4 | 1-3/4 |
| 2-11-1/2 | 4-1/2 | 1-3/4 |
| 2-1/2-8 | 5-1/2 | 2-9/16 |
