Home Electrical Electrical Wiring Devices Wiring Connectors Mechanical Connectors & Lugs Mechanical Terminal Lugs BURNDY® K21A36U2 K21A-U Dual Rated Universal Terminal Lug, 2 AWG to 600 kcmil Copper/Stranded Aluminum Conductor, 3/8 in Stud, 2 Bolt Holes, Aluminum