#1-72 · National Fine (UNF)

For #1-72 · National Fine (UNF), thread or drill designation is #1-72; record type is tap_drill; tap drill or decimal size is #53; thread series is National Fine (UNF), recorded from its source on 2026-08-28; source re-checked 2026-09-15.

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

#1-72 | #53

— victornet.com, retrieved 2026-08-28

Source

• victornet.comhttps://www.victornet.com/reference/Tap_Drill.html

Last verified against source: 2026-09-15. Due for re-check by 2031-08-27. This page as Markdown · OKF bundle · full dataset as JSON.