These Dual-Rated One-Conductor Lugs Are Constructed From High Strength Aluminum Alloy And Electro Tin-Plated To Provide Low Contact Resistance, Stud/bolt Hole Size: 1/4 IN, Set Screw Type: Slot, Length: 1.5 IN, Installation Torque: 50 IN-LB, Width: 0.63 IN, Height: 0.8 IN, Dimension D: 0.81 IN, Dimension N: 0.44 IN, Dimension T: 0.19 IN