ILSCO Two-Bolt Connector, Mechanical connection, Dual Rated, Aluminum material, Wax plated connector,Copper Primary Conductor 250 kcmil - 1/0 Str, Aluminum Primary Conductor 250 kcmil - 1/0 Str and, Copper/Aluminum Secondary Conductor 10 Sol and 250 kcmil - 10 Str, 2 conductors, 1 ports/wireways, Drive Type Main 5/8 External Hex, primary color Silver, 1 poles,