ILSCO® Mechanical Terminal Lug, Dual Rated, Series: AU, Aluminum/Copper Conductor, 1000 kcmil to 500 kcmil Conductor, 1/2 in Stud, 2 Bolt Holes, 3.125 in L x 3.188 in W x 0.5 in T Tongue, Straight Tongue, 2000 V, 9/16 in Hex, 1-3/4 in Mounting Hole Spacing, 90 deg C, Aluminum, Electro Tin Plated, 4.75 in L x 3.188 in W x 1.938 in H