Cable Gland Stopper Plug, Type Threaded, Head Style Mushroom, Material Brass, Finish Nickel Plated, Enclosure Class I Group A B C D, Class II Groups E F G, Class III, Type 4X, Ex d II, IP66/IP68, Used On Cable Gland, Approval UL, CSA C22.2, CSA (Canada and US), Male Thread Size M50, Plug Size M20, Socket Size 10 MM