Thomas and Bettsmakes this 54215 copper 2-hole compression connector with a straight short barrel for regular duty use in confined spaces. 2-holes make them ideal for bus bar useage that require two bolts to prevent lug rotation. Made for 350 kcmil wire, it is color-keyed RED (die color) 71 (die code) for easy identification. Lug is tin plated with inspection hole, has a 1" hole spacing and takes two 3/8" bolts. Use the 272X228 die and the 272X100 Insulated manual hydraulic crimper to install this lug.