NPT Rohrgewinde ANSI B 1.20.1

Ø Gangzahl per Inch VorbohrØ mm Millimeter Inch
Dezimal
1/8 27 8,50 10,287 0,405
1/4 18 11,00 13,716 0,540
3/8 18 14,50 17,145 0,675
1/2 14 18,00 21,336 0,840
3/4 14 23,00 26,670 1,050
1 11.1/2 29,00 33,401 1,315
1.1/4 11.1/2 38,00 42,164 1,660
1.1/2 11.1/2 44,00 48,260 1,900
2 11.1/2 56,00