BSPP (G) — British parallel pipe
3/4-14 BSPP pipe thread: 14 TPI, major Ø 26.441 mm.
Profile
| Designation | 3/4-14 BSPP |
|---|---|
| Major (outside) diameter | 26.441 mm · 1.041" |
| Pitch | 1.814 mm · 14 TPI |
| Pitch diameter | 25.263 mm · 0.9946" |
| Minor diameter (external) | 24.215 mm · 0.9534" |
| Minor diameter (internal) | 24.477 mm · 0.9637" |
| Recommended tap drill | — |
3/4-14 BSPP is a BSPP pipe thread running at 14 threads per inch on a 26.441 mm major diameter. BSPP (G) is a parallel thread sealed by a bonded washer or gasket, not by thread interference — so it has no tapered tap-drill sizing.
All values are generated from the standard thread formulas (ISO 68-1 / ASME B1.1) and published standard tables — not hand-entered. See the full reference.
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