UNC UNF NC NF Unified Plug Bottoming Tap 4-40 6-32 8-32 10-24 10-32 12-24 UK
UNF 10 (32 TPI). Unified Bottoming/Plug Tap available in various sizes. If you need a tap with zero thread lead or no tip, search for a 'finishing' tap or grind the tip of the tap. UNC 4 (40 TPI). UNC 6 (32 TPI).