Hex Head Plug 1/2 in Nominal Pipe Size Brass Black Zinc-Plated Class Class 1000 Male NPTF 1 in Outside Diameter 15/16 in Overall Length 1 000 psi Maximum Operating Pressure 850 psi Max Steam Pressure Plug Drive Style 0.71 in Hex Includes Pre-Applied Thread Sealant No Includes Seal No Magnetic No Black