Hexagon Nipple Male Thread Stainless Steel Pipe Fitting is a common pipeline connector, mainly used to connect the pipeline with valves, instruments or other pipeline accessories.
| NO. | Size | External Dia.(mm) | Thickness(mm) |
| 1 | R1/2 | 1/2×1/2 | 1.5 |
| 2 | R3/4 | 3/4×3/4 | 1.5 |
| 3 | R1 | 1×1 | 1.5 |
| 4 | R1-1/4 | 1 1/4×1 1/4 | 1.5 |
| 5 | R1-1/2 | 1 1/2×1 1/2 | 1.5 |
| 6 | R2 | 2×2 | 1.5 |
