Multiple purpose parallel groove clamp made of high strength, high conductivity, non copper bearing aluminum alloy, properly proportioned to minimize stress corrosion and deterioration by galvanic action|Interlocking fingers on connector body halves prevent mismatching, square shank, hex head, round collar|High strength galvanized steel bolt allows one or two-wrench installation|Also supplied pre-filled with PENETROX joint compound and strip sealed|Groove A - 8 AWG stranded to1/0 AWG stranded for copper, Aluminum, 6 to 1/0 AWG ACSR, 6201 and 5005, groove B - 8 AWG stranded to1/0 AWG stranded for copper, Aluminum, 6 to 1/0 AWG ACSR, 6201 and 5005 main/primary conductor range