Hex Head Cap 1/4 in Nominal Pipe Size Stainless Steel Bright 316L Female NPT 7/8 in Overall Length 6 600 psi Maximum Operating Pressure -425 Degrees to 1200 Degrees F Plug Construction Cored Plug Drive Style 3/4 in Hex Includes Pre-Applied Thread Sealant No Includes Seal No 1/4 in -18 Magnetic No