Square Head Plug 1/4 in Nominal Pipe Size Brass CA2745 Male NPT 1/2 in Outside Diameter 13/16 in Overall Length 1 000 psi Maximum Operating Pressure -40 Degrees to 250 Degrees F Plug Construction Solid Plug Drive Style Square Includes Pre-Applied Thread Sealant No Includes Seal No 1/4 in -18 Magnetic No