Hex head cap is made of brass, which is used with brass pipe.
All pipe threads are "American Standard Taper Pipe Threads".
It is used in low to medium pressure applications.
Tape or pipe sealant is recommended.
Pipe threads should be tightened 2-1/2 turns past finger tight.
Specification
-Maximum working pressure: Operating pressure UP to 1200psi
-Item Shape: End Cap
-Material: Brass
-Measurement System: Inch
-Style: Threaded
-Connector Type: NPT Female