Trenton Pipe SS316-67006H Pipe Fitting, Class 150, Cast Stainless Steel Grade 316, Hex Head Plug, 3/4" NPT Male A Hex Head Plug closes off the end of a pipe and has male threads Quality Precision Investment Castings made of 316 Stainless Steel to ASTM A351 Standards USA, Standard Taper Pipe Threads, NPT-Male, to ANSI B.120.1 Standards