Features 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. Note: Fitting must be used with properly rated nipples and pipes. Nominal Pipe Size / 1 in Pipe Fitting Material / Forged Steel Finish/Coating / Black Fitting Connection Type / Male NPT Plug Construction / Solid Includes Pre-Applied Thread Sealant / No Includes Seal / No Standards / ANSI B1.20.1, ASME B16.11 and SA105, ASTM A105