Grounding Connector, Grounding Wire Size 4 to 6 AWG SOL, Material Copper, Number of Wires – Grounding 1, For Maximum Ground Conductor Wire Size 4 AWG SOL, For Minimum Ground Conductor Wire Size 6 AWG SOL, For Use With Galvanized Rod, Grounding Wires Connected To 5/8 in Rod, Standards cULus, RUS, Type – Grounding Connector Hammer, Accessory Type Ground Clamp, For Rod Dia. 5/8 in