About This Material: Brass Square Head Plug Made of high quality brass with superior anti-corrosive and high strength、high hardness. Function: Male threads Square Head Plug for connect one end of a pipe to terminate flow. Hard-connected, it does not need extra sealing for most situation,NPT thread size does not actual diameter, it is only nominal pipe size. Feature: Forged brass fittings, corrosion resistance, ductility at high temperatures, and low magnetic permeability. Operating temperatures range from -53 to 121℃ (-65 to 250 ℉). Operating pressure: 150 PSI. Wide Application: Apply to home plumbing pipes, grease, fuels, natural gas, refrigeration, instrumentation, hydraulic and other applications. Package: 5Pcs 1/4"NPT,5Pcs 3/8"NPT,5Pcs 1/8"NPT,5Pcs 1/2"NPT Male Square Head Plug,1Pcs Teflon Tape. Overview Size : 1/8" 1/4" 3/8" 1/2" 3/4" NPT (Square) Kit Material : Brass Brand : GASHER Color : Square Plug(Brass) Item Weight : 0.2 Pounds Manufacturer : GASHER