Uninsulated Sockets Multi-Contact sockets with threaded bolts that are suitable either to screw into cable terminal lugs, bus-bars, contact blocks or to incorporate into insulated housings for slide-in-rack technology.,Available as 3mm, 5mm, 6mm and 8mm sockets. Current Rating (A) : 3mm (40), 5mm (70), 6mm (100), 8mm (130)