nVent ERICO CP58 Ground Clamp, Clamping Range: 1/2 to 5/8 in, #10 to 2 AWG Wire, Silicone Bronze

Connects grounding wire to the grounding rod. UL and CSA listed for 1/2 in and 5/8 in ground rods and number 4 rebar and accept a conductor range from number 10 solid to number 2 stranded.