Color-Keyed® Compression Lug, 1-Hole, Series: 54100, Copper Conductor, 4 AWG Conductor, Die Code: 29, 35 kVAC, 3/8 in Stud, 90 deg Tongue, 0.66 in L x 0.61 in W x 0.07 in THK Tongue, 1.42 in Overall Length, Standard with Inspection Hole Barrel, 0.37 in Dia Barrel, 0.406 in Mounting Hole, Copper, Gray