Cable Gland Stopper Plug, Type Threaded, Head Style Mushroom, Trade Size M20, Material 316L Stainless Steel, Enclosure Class I Group A B C D, Class II Group E F G, Class III, Ex d/Ex e IIC, NEMA 4X, IP66/IP68, Used On Cable Gland, Approval UL 886, CSA C22.2, CAN/CSA, Applicable Standard IEC 60079-0, 60079-1, 60079-7, 61241-1, Includes O-Ring