This Grainger Approved hex head plug offers you a simple, economical installation and is ideal for use with water and oil in chemical, petrochemical, pulp, paper, shipbuilding, waste incineration, and semiconductor industry applications. Nominal Pipe Size / 1 1/2 in Pipe Fitting Material / Forged Steel Finish/Coating / Black Fitting Connection Type / Male NPT Standards / ANSI B1.20.1, ASME B16.11 and SA105, ASTM A105