Weld On Grounding Stud, Grounding Wire Size 4/0 AWG, Material Steel, Number of Wires - Grounding 1, Description/Special Features Structural Steel Grounding Connector, YGHP34C34, For Maximum Ground Conductor Wire Size 4/0 AWG, For Minimum Ground Conductor Wire Size 4/0 AWG, For Use With Structural Steel, Grounding Wires Connected To 3/4 in Rod, Standards UL Listed Direct Burial, UL467, Type - Grounding Connector Mechanical, Accessory Type Grounding Connector, For Rod Dia. 3/4 in