1,OEM/ODM, completable specification, 2,Professional factory 3,brass with nickel plated/nylon 4,thread:NPT,M,PG,G 5,CE,RoHS brass nut of cable connector, cable gland, m12/m14/,,,,,,,m64The brass nut part of the cable gland(cable connector).Back off nuts, and let the thread part of the cable gland get through the hole of the Steel plate, then tighten the nut. brass nut of cable gland