Aluminum Long Barrel 1 Hole Compression Lugs #6 Awg 1/4" Stud Size - A One Hole Compression Lug for use with Copper or Aluminum Cables.Aluminum Long Barrel 1 Hole Compression Lugs #6 Awg 1/4" Stud Size features include: One Hole Aluminum Compression Lugs are AL9CU Dual Rated and accept both Aluminum and Copper Conductors Connector Barrel is Coated with Oxide Inhibitor amp; capped Aluminum Compression Lug is made of High-Conductivity Seamless Aluminum Uniform Bright Electro-Tin Plating resists corrosion, reduces contact resistance and gives you maximum conductivity Single Mounting Hole Color Coded for Easy Identification Marked with Die Index Crimp Marks indicate Proper Crimp Locations UL486B Listed AL9CU 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 Dual Rated 1 Hole Compression Lugs #6 Awg 1/4" Stud Size