Screw joint, two-side female thread, similar to DIN 2993
Fittings with conical or flat sealing as well as turned or cast design available.
| Rp | AF | Overall length mm |
| 1/8" | 22 | 28 |
| 1/4" | 27 | 38 |
| 3/8" | 32 | 40 |
| 1/2" | 32 | 46 |
| 3/4" | 41 | 52 |
| 1" | 46 | 55 |
| 11/4" | 60 | 60 |
| 11/2" | 65 | 71 |
| 2" | 80 | 75 |
| 21/2" | 90 | 90 |
