Metal Cable Glands 3/8" .16" - .32"m- NPT Thread - Our Metal Cable Glands are Used to introduce cables or leads into metal housings.Metal Cable Glands - NPT Thread 3/8" .16" - .32" features include: Used to introduce cables or leads into metal housings, or to introduce reinforced cables Designed for use in areas of zone 1(2G) and 21(1D) with no risk of explosion and for cables with and without reinforcement In case of systems or housing manufactured according to NEC, the line or the connecting cable must be introduced by conduits, mounting fittings, etc. with NPT threads Working Temp: -40deg;F to 212deg;F Brass Nickel Plated Neoprene Grommet IP 68 (NEMA 6P) rated - Submersible Dustproof cULus Listed Dimension Measurements = Inches Order Qty of 1 = 1 Piece Below is more info on our Metal Cable Glands - NPT Thread 3/8" .16" - .32"