T3 Series Cable Gland Connector, Size: 1/2 IN (20S), Conductor Range: Inner: 0.24 - 0.46 IN, Outer: 0.37 - 0.63 IN, Material: Brass, Finish: Nickel Plated, Connection: NPT, Dimensions: 0.94 IN Across Flat X 1.05 IN Across Corner X 3.11