Material: ASTM 1020 Steel (made from seamless pipe), surface ASTM1020
Size Available: 2-1/2", 3",3-1/2", 4", 5",6",8" and more
ASME B1.20.1 NPT pipe threads A865 - 06(2012) Standard Specification for Threaded Couplings, Steel, Black or Zinc-Coated (Galvanized) Welded or Seamless, for Use in Steel Pipe Joints
Half Coupling
Full Coupling
NPT Thread (ASME B1.20.1):