The BURNDY KS31 split bolt connector is designed for reliable electrical performance. Key features include Type KS, Solid/Stranded Copper Conductor, 1/0 AWG to 350 kcmil Conductor, 1-3/8 in Bolt, Specifications: 1-Conductor, 8 AWG to 350 kcmil Primary, 12 AWG to 350 kcmil Secondary, Copper Alloy, Plain Copper Plated, 1.25 in L x 1.7 in W.