Grounding Connector: Copper, 8 to 4 AWG SOL/8 to 4 AWG STR Grounding Wire Size, 1 Grounding WiresGrounding Connector: Copper, 8 to 4 AWG SOL 8 to 4 AWG STR Grounding Wire Size, 1 Grounding Wires Item 22A990 Mfr. Model GB4C Grounding plate clamps mount onto a surface and are tightened down with a screw. Wire feeds through the lugs. These clamps are suitable for direct burial applications. Brand BURNDY Grounding Wire Size 8 to 4 AWG SOL 8 to 4 AWG STR Grounding Wires Connected To1 4 in Bar MaterialCopper Number of Grounding Wires1 Description