Square Head Plug 1/8 in Nominal Pipe Size Stainless Steel 316L Class Class 150 For Pipe Schedule 40 Male NPT 1/8 in Outside Diameter 18 mm Overall Length 300 psi Maximum Operating Pressure 150 psi Max Steam Pressure -20 Degrees to 350 Degrees F Plug Drive Style 2 in Square Includes Pre-Applied Thread Sealant No Includes Seal No 27 Magnetic No