Grounding Split Bolt Connector with Stud, Connector Material Copper Alloy, Connector Type Mechanical, Grounding Wire Size 1 to 4/0 AWG SOL, 1 to 4/0 AWG STR, Number of Wires - Grounding 1, Overall Length 3 15/16 in, Thread Size 5/8 In.-11, Standards UL Listed, UL Listed-Direct Burial, UL467, Conductor Size 4/0 AWG 1 to 1 AWG, Conductor Type Run, Installation Torque 660 in-lb, Overall Width 1 3/16 in, K2C, KC