29. Basic profile of threads

■American Standard Taper Pipe Threads ■

Truncation Unit : mm Threads Section fc=fr per inch

Internal Thread Threads per inch

Central axis External Thread line of thread

■Dryseal American Standard Taper Pipe Threads

Internal Thread

Threads per inch

Truncation Unit : mm Threads

Section fc fr

per inch

Central axis line of thread External Thread

■Metric Trapezoidal Screw Threads ■29˚ Trapezoidal Screw Threads

Internal Thread

Internal Thread

External Thread

External Thread

Threads per inch