Aluminum Mechanical Lugs One Conductor Dual Set Screw - Two Hole Mount with Mounting Hole 600MCM-#4 Awg- This 1 Conductor Two Hole Aluminum Mechanical Lug with Mounting Hole resists corrosion.Aluminum Mechanical Lugs One Conductor Dual Set Screw - Two Hole Mount 600MCM-#4 Awg features include: Aluminum Mechanical Lug manufactured from High Strength 6061-T6 Aluminum Alloy to insure both maximum strength and conductivity AL9CU Dual Rated for both Copper and Aluminum Conductors Electro-tin Plated to provide low contact resistance and protection against corrosion Assembly can be made with only a screwdriver or allen wrench and they are re-usable NEMA Standard Mounting Hole Drilling 1-3/4 Centers Rated 600V 194deg;F (90deg;C) Conductor lug is UL486B/CSA Listed Dimension Measurements = Inches Order Qty of 1 = 1 Piece Below is more info on our Aluminum Mechanical Lugs One Conductor Dual Set Screw - Two Hole Mount with Mounting Hole 600MCM-#4 Awg