Grounding Connector, Grounding Wire Size 8 AWG to 750 kcmil, Material Copper, Number of Wires - Grounding 1, Description/Special Features Direct Burial, For Maximum Ground Conductor Wire Size 750 kcmil, For Minimum Ground Conductor Wire Size 8 AWG, For Use With Copper Conductors, Ground Rods, Pipes, Grounding Wires Connected To 2 1/2 in to 3 1/2 in Rod, Standards UL Listed Direct Burial, UL467, Type - Grounding Connector Mechanical, Accessory Type Ground Clamp, Bolt Size 3/8 in