Home Electrical Electrical Wiring Devices Wiring Connectors Mechanical Connectors & Lugs Mechanical Terminal Lugs BURNDY® K2A31U K2A-U Dual Rated Universal Terminal Lug, 6 AWG to 350 kcmil Aluminum/Stranded Copper Conductor, 1/2 in Stud, 1 Bolt Hole, Aluminum