
| Designation | Symbol | Class | Material | Threads to be cut | Range |
| Straight Pipe Thread Tap | 1 / 8 | ||||
| Dryseal Straight Pipe Thread Tap | 1 / 8 3 / 4 | ||||
| Taper Pipe Thread Tap | 1 / 16 | ||||
| Dryseal Taper Pipe Thread Tap | 1 / 16 |
| Size | Major diameter | Pitch diameter | Minor diameter� | |||
| Max. | Min. Tolerance | Max. | Min. | Tolerance | Max. | |
| r pipe threa dimensions change d Number o | d taps (NPT) G epending on actually f threads | Class measured. Tc (Max) Tc (Min) Axis o Fc(Max) Fc (Min) Tr(Max) Tr (Min) Taper | f tap Fr(Max) Fr(Min) |