Posted by on 10/5/2023 to
Charts
BSP pipe measurements can get confusing, here's a handy chart to help you fit all your parts together seamlessly.
| Thread Size | Actual OD (Inches) | Threads Per Inch (Pitch) |
|---|---|---|
| 1/16" | 0.304" | 28 |
| 1/8" | 0.383" | 28 |
| 1/4" | 0.518" | 19 |
| 3/8" | 0.656" | 19 |
| 1/2" | 0.825" | 14 |
| 5/8" | 0.902" | 14 |
| 3/4" | 1.041" | 14 |
| 7/8" | 1.189" | 14 |
| 1" | 1.309" | 11 |
| 1 1/4" | 1.65" | 11 |
| 1 1/2" | 1.882" | 11 |
| 2" | 2.347" | 11 |
| 2 1/4" | 2.587" | 11 |
| 2 1/2" | 2.96" | 11 |
| 3" | 3.46" | 11 |
| 3 1/2" | 3.95" | 11 |
| 4" | 4.45" | 11 |
| 5" | 5.45" | 11 |
| 6" | 6.45" | 11 |
