Schroefdraad kalibers
![Metrisch](https://www.naumetrics.nl/inhoud/uploads/Metrisch-548x260.jpg)
Schroefdraad kalibers Metrisch: ISO Metric Coarse Threads, DIN 13
Gauge size DIN ISO 1502
![Metrisch](https://www.naumetrics.nl/inhoud/uploads/Metrisch-548x260.jpg)
Schroefdraad kalibers Metrisch Fijn: ISO Metric Fine Threads, DIN 13
Gauge size DIN ISO 1502
Schroefdraad kalibers EG-M: ISO Metric Coarse Threads for wire inserts
Schroefdraad kalibers RP/RC/R: Whitworth Pipe Threads DIN EN 10226, ISO 7, DIN 2999 (withdrawn)
Schroefdraad kalibers NPT: American Taper Pipe Thread – Taper 1:16 ANSI B 1.20.1(general purpose)
Schroefdraad kalibers NPTF: American Taper Pipe Thread – Taper 1:16 ANSI B 1.20.3 (dry sealing)
![Metrisch](https://www.naumetrics.nl/inhoud/uploads/Metrisch-548x260.jpg)
Schroefdraad kalibers Tr: Metric ISO Trapezoidal Threads DIN 103