Permaground Ground Clamp Connector, Mechanical connection, Copper material, mounting bolt/stud size 1/2-13 in, Copper/Aluminum Primary Conductor 2/0 Str - 8 Str and 2/0 Sol - 8 Sol, 1 conductors, 1 ports/wireways, Drive Type Main 9/16 External Hex, primary color Copper,