Conduit Fitting with Strain Relief, Straight with External Male Thread, Conduit Size 40mm, M40 Thread, Minimum Bore 36mm, Suitable for Unbraided Nylon Conduit, Clamping Range 20.0 to 25.0 K, Approved for Zone 1 and 2, Zone 21 and 22, IP68 Rating, Modified Nylon 12 with Nickel Plated Threads, Black