... npt male plug: 1,material:ss304,ss316,brass,copper 2,size:1/8"-1" 3, ... Thread: ZG, R, GPT, NPT.etcYuwei Lok brand series products have 10 strengths following, our pipe joints species ... customer’s requirementsOur strength:Stainless steel, carbon steel, brass fittings are available,Strict quality control norms followed at ... Simple style nut (ferrule structure and general) brass npt thread male plug adapter