Example designation
0.30-0.080 UNM
- 0.30
- Nominal major diameter of 0.30 mm.
- 0.080
- Pitch of 0.080 mm, rather than a threads-per-inch value.
- UNM
- Unified miniature thread family.
Pick the complete miniature size
The available catalog runs from 0.30 × 0.080 mm to 1.40 × 0.300 mm. Each choice supplies its own dimensional limits; there is no separate 2A or 2B class selection.
Wire size matters at this scale
Use the calculated minimum and maximum wire sizes when selecting an inspection wire. The best-size wire and the selected-wire measurement refer to this miniature profile and pitch.