J.W. Winco Aluminum Threaded Plug w/Fill Symbol w/2mm Vent Hole G 1" Pipe Thread (Discontinued)

J.w. Winco 742-40-g1-es-2 aluminum threaded plug w/fill symbol w/2mm vent hole g 1" pipe thread gn 742 fill/drain plugs are fitted with outside diameter d1 to fit screw holes with bsp threads included in din 3852. The seal is retained in a groove undercut in the mating face, which prevents it from dropping out and from extruding when the plug is tightened. For this reason the seal can be of a softer material which offers better sealing. Maximum heat resistance: 180c (356f).