| Code | Taper | Number of thread per inch | Inspection Elements |
|---|---|---|---|
| 6250-4 | 1:4 | 4 | thread height |
| 6250-5 | 1:4 | 5 | |
| 6250-5 | 1:16 | 8, 10 | thread height |
| 6250-51 | 1:16 | 5 | thread height |
| Code | Taper | Number of thread per inch | Inspection Elements |
|---|---|---|---|
| 6250-4 | 1:4 | 4 | thread height |
| 6250-5 | 1:4 | 5 | |
| 6250-5 | 1:16 | 8, 10 | thread height |
| 6250-51 | 1:16 | 5 | thread height |