Aluminum Long Barrel 2 Hole Compression Lugs 500 MCM - 5/8 Stud - Dual Rated Two Hole Compression Lug for Aluminum or Copper Cables.Aluminum Long Barrel 2 Hole Compression Lugs 500 MCM - 5/8 Stud features include: 2 Mounting Holes AL9CU Dual Rated Two Hole Compression Lugs accept both aluminum and copper conductors Connector Barrels are Coated with Oxide Inhibitor & capped Made of High-Conductivity Seamless Aluminum Uniform Bright Electro-Tin Plating resists corrosion, reduces contact resistance and gives you maximum conductivity Color Coded for Easy Identification Marked with Die Index Crimp Marks indicate Proper Crimp Locations UL486B Listed AL9CU Dual Rated Two Hole Compression Lug is Listed for 35KV when properly installed cULus Listed Dimension Measurements = Inches Order Qty of 1 = 1 Piece Below is more info on our Aluminum Long Barrel 2 Hole Compression Lugs 500 MCM - 5/8 Stud