Pseudo said:1/16 - 27 "C" (0.242)
1/8 - 27 "Q" (0.332)
1/4 - 18 7/16 (0.438)
3/8 - 18 9/16 (0.562)
1/2 - 14 45/64 (0.703)
3/4 - 14 29/32 (0.906)
1.0 - 11?1/2 1?9/64 (1.141)
1?1/4 - 11?1/2 1?31/64 (1.484)
1?1/2 - 11?1/2 1?23/32 (1.719)
2.0 - 11?1/2 2?3/16 (2.188)
2?1/2 - 8 2?39/64 (2.609)
3.0 - 8 3?15/64 (3.234)
Heres a chart for ya bud just for the NPT threads. I forgot to turn it over.:sleepy:
Gmandese said:Sam. before you drill and tap, try your fitting in a 1/2"x13 NUT. If it fits, you're good, if not, you need the 1/2"x14. The hardware store will have one.