Reference Source

6

For 6, thread standard is BSPT; threads per inch (tpi) is 11; thread pitch (mm) is 2.309; major (outside) diameter (mm) is 163.83; minor diameter (mm) is 160.87, recorded from its source on 2026-08-12.

Thread standard
BSPT our reading
Nominal size
6 verified
Threads per inch (TPI)
11 verified
Thread pitch (mm)
2.309 verified
Major (outside) diameter (mm)
163.83 verified
Minor diameter (mm)
160.87 verified
Thread angle (degrees)
55 our reading
Governing standard
ISO 7-1 our reading
Sourcemachiningdoctor.com
Verified
Review by
DatasetPlumbing fitting and pipe thread standards

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

BSPT R 6 | 6" | 11 | 2.309 | 28.6 | 1.5 / 3.5 | 163.83 | 162.35 | 160.87 | 0 | -999.00

machiningdoctor.com, retrieved 2026-08-12

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.