(2 Pack Ships Fast) 3/8″ NPT Carbon Steel Hex Head Pipe Plug | USA Seller
Male Thread Size: 3/8″ NPT = 0.675″. NPT: National Pipe Tapered Threads Information. 2 New Solid Pipe Thread Plug Fittings. Zinc Coated Carbon Steel. Allen Head Drive Tool: 5/16″. Temp Range: -65 to 400 Degrees F.