REGULATOR MALE NIPPLEMaterial Specification:C360 (Free Cutting Brass), IS 319, others as per requirement Type of Sizes:Imperial Thread Standards:BSP, UNEF, NPT Uses:Gas & Air lines for both Industrial & Domestic use. Application:Welding, Gas & Air Services Size:9/16” (Available in both L.H. & R.H.) Pipe Size:1/4”, 3/8