Penn-Union Compression Lug, 1-Hole, Copper, 300 MCM, 5/16" Stud Size, White

Copper Compression Lug with Sight Hole, Conductor Size: 300 MCM, Conductor Diameter: .634", 1-Hole Stud, Stud Diameter: 5/16". For use with Copper Conductors in Grounding, Bonding & Direct Burial Applications.