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British standard pipe thread (BSP), a Whitworth form pipe thread, standard in Great Britain and continental Europe. ISO 7-1 and the new BS EN 10226-1, ISO 228-1 and BS 2779:1986. (BS EN 10227-1)
Pipe thread sizes
| Nominal BSP Size | Outer Diameter | Threads per inch |
|---|---|---|
| 1/8 " | 0.303" | 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 |
| 1¼ " | 1.650" | 11 |
| 1½ " | 1.882" | 11 |
| 1 3/4 " | 2.116" | 11 |
| 2 " | 2.347" | 11 |
See also
External links
- Georgefischer Co. Shows the Whitworth form BSP or ISO pipe thread.
"British standard pipe thread"