Copper Short Barrel 1 Hole Compression Lugs 400 MCM 1/4 Stud- One Hole Copper Compression Lugs for fast reliable electrical cable terminations.Copper Short Barrel 1 Hole Compression Lug 400 MCM 1/4 Stud features include: Single Mounting Hole Our One Hole Copper Compression Lugs are made of high-conductivity Seamless Electrolytic Copper Uniform Bright Electro-Tin Plating resists corrosion, reduces contact resistance and maximizes conductivity Crimp Marks indicate Proper Crimp Locations Compression Lugs are Marked with Die Index and Color Codes for easy identification Peephole Included for Verification of Proper Strand Insertion UL 486A Listed Listed for 35KV when properly installed cULus Listed Dimension Measurements = Inches Order Qty of 1 = 1 Piece Below is more info on our Copper Short Barrel 1 Hole Compression Lugs 400 MCM 1/4 Stud