Abstract: A locking wire connecting device having a plurality of cylindrical housings of circular cross section, each of the housings containing plural rings of plural symmetric inwardly curving teeth, and an alloy pin embedded in a plastic retaining wall. A wire is inserted into each of the respective housings without removal of the wire insulation, until the pin fully contacts the respective wire and pushes the wire insulation firmly into the inwardly curving teeth, which will resist slippage or removal of the wire. This allows for quick, reliable and simple connecting of cut wires in an enclosed space.