External Pipe Thread Design, Specifications and NPT Pipe Thread Tolerances

National pipe thread - Wikipedia

Different Types of Threads based on 4 Standards

National Standard Taper Pipe Threads Size NPT Chart

ISO 724 - Metric Threads

Pipe Thread Pitch Diameter Formulas and Calculator

NPTF - National Pipe Thread Fuel (Dryseal) Threads

All About Pipe and Hose Threads

Product and Technical Support Resources

Product and Technical Support Resources

6-Piece NPT Pipe Tap Set, 1, 3/4, 1/2, 3/8, 1/4

ASME B1.20.1 (2014) - Pipe Threads, General Purpose (Inch)..pdf

Quality 101, March 2023