Weld On Grounding Stud Grounding Wire Size 1/0 AWG Material Steel Number of Wires - Grounding 1 Description/Special Features Structural Steel Grounding Connector For Maximum Ground Conductor Wire Size 1/0 AWG For Minimum Ground Conductor Wire Size 1/0 AWG For Use With Structural Steel Grounding Wires Connected To 9/16 in Rod Standards UL Listed Direct Burial UL467 Type - Grounding Connector Mechanical Accessory Type Grounding Connector For Rod Dia 5/8 in Overall Length 5 11/16 in