Example designation
1/16-28 BSPP
- 1/16
- Nominal pipe size.
- 28
- Threads per inch; approximately 0.907 mm pitch.
- BSPP
- Parallel pipe profile selected in this calculator.
Parallel diameters
The same basic diameter appears at the pipe face and gauge datum because this profile is parallel. The named rows still identify the location and side associated with each result.
Confirm the full pipe-thread specification
A nominal size and the BSPP label alone do not identify every tolerance or connection requirement. Match the reference listed on this page to the requirements on the part drawing.
Record the selected wire
This calculation reports a two-wire measurement at the gauge datum. Use that measurement with its selected wire and the named gauge and useful-thread lengths.