Color-Keyed® Compression Lug, 1-Hole, Series: 54100, Copper Conductor, 400 kcmil Conductor, Die Code: 76, 600 VAC to 35 kV, 1/2 in Stud, Straight Tongue, 1.25 in L x 1.41 in W x 0.17 in THK Tongue, 3.2 in Overall Length, Standard Barrel, 0.96 in Dia Barrel, 0.531 in Mounting Hole, Copper, Blue