1.Approved by UL(ROHS, TUV, CE, IP68... used on: waterproof case,distribution box, ... cable 1.Material: parts A,C,E are made of UL approved nylon PA66,parts B and D are made of ... rubber(NBR)2.Thread specificaiton: Metric ,PG,G,NPT3.Working Temperature : -40 to 100 centigrade in static state,instantaneous heat resistance ... colors that can be designed at request. PG9 cable gland ( UL certificate )