Abstract: Ends of several electrical wires are joined by a connector to a predefined torque level. The connector includes a hollow body having an open end, a smaller closed end and an outer surface extending between the two ends. The outer surface has a portion with an equilateral polygonal cross-section for engagement by a tool to effect rotation of the body. The portion of the body is specifically designed with elements, such as the corners of the polygon, which become rounded when the tool applies torque that exceeds the predefined torque level. Such deformation of the body thereby prevents excessive torque from damaging the electrical wires. Another portion of the body is provided to enable another tool to engage the connector for removal from the wires.