Penn-Union BLU035S Compression Lug, 1-Hole, Copper, 350 MCM, 1/2" Stud Size, Red

Copper Compression Lug with Sight Hole, Conductor Size: 350 MCM, Conductor Diameter: .682", 1-Hole Stud, Stud Diameter: 1/2". For use with Copper Conductors in Grounding, Bonding & Direct Burial Applications.