Round Cap 1/4 in Nominal Pipe Size Brass Black Zinc-Plated Class Class 1000 Female NPTF 13/16 in Outside Diameter 5/8 in Overall Length 1 000 psi Maximum Operating Pressure 850 psi Max Steam Pressure Plug Drive Style 0.53 in Hex Includes Pre-Applied Thread Sealant No Includes Seal No Magnetic No Black