Full Technical Description: Threaded Type; Dark Gray PVC Coated Zinc Hub, Nitrile Buna-N Sealing Ring Material; 1.44 Inch Dia X 1.56 Inch L Size; Rigid Conduit Used on; UL 94 Approval; Locknut Bonding/Grounding Screw; 1/2 Inch Trade Size; Corrosion Resistant; Thermoplastic Insulated Throat Type; OCAL-BLUE[R] Brand; Maximum Panel Thickness 0.19 Inch; Temperature Rating 105 Deg C; STG Model