Cable Gland Stopper Plug, Type Threaded, Head Style Recessed, Trade Size M25, 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 886, CSA C22.2, CAN/CSA, Applicable Standard EN/IEC 60079-0, 60079-1, 60079-7, 61241-1, Thread Length 0.394 Inch