Grounding Connector Grounding Wire Size 4 to 4/0 AWG SOL 4 to 4/0 AWG STR Material Copper Number of Wires - Grounding 1 Description/Special Features Galvanized Steel Hardware For Maximum Ground Conductor Wire Size 4/0 AWG For Minimum Ground Conductor Wire Size 4 AWG For Use With Copper Conductors Pipe Grounding Wires Connected To 1/2 in to 1 in Pipe Standards UL Listed UL467 Type - Grounding Connector Mechanical Accessory Type Ground Clamp For Maximum Pipe Size 1 in