NPT THREADING INSERT （IR/ IL ）
| Type | ΦI.C | S | Φd | α° |
| 16IR8NPT | 9.525 | 3.52 | 4 | 60° |
| 16IR11.5NPT | 9.525 | 3.52 | 4 | 60° |
| 16IR14NPT | 9.525 | 3.52 | 4 | 60° |
| 16IR18NPT | 9.525 | 3.52 | 4 | 60° |
| 16IR27NPT | 9.525 | 3.52 | 4 | 60° |
| 16IL8NPT | 9.525 | 3.52 | 4 | 60° |
| 16IL11.5NPT | 9.525 | 3.52 | 4 | 60° |
| 16IL14NPT | 9.525 | 3.52 | 4 | 60° |
| 16IL18NPT | 9.525 | 3.52 | 4 | 60° |
| 16IL27NPT | 9.525 | 3.52 | 4 | 60° |
