2 threads per inch

- 1 2 threads per inch
- 2 npt threads per inch
- 2 56 threads per inch
- 2 bolt threads per inch
- 11 1 2 threads per inch
- M16 x 2 threads per inch
- 1 2 bsp threads per inch
- 1 2 unc threads per inch
- 1 2 unf threads per inch
- 1 2 pipe threads per inch
- 1 2 bspp threads per inch
- 1 2 bolt 12 threads per inch
- 1 2 x 28 threads per inch
- 1 2 x 12 threads per inch
- 1 ⁄ 2 28 tpi threads per inch