Abstract: Conductive leads are coupled to a plug including an electrically conductive rod shaped member positioned in a dielectric sleeve which is slidably positioned in an electrically conductive barrel shaped member having a dielectric piston slidably positioned therein. A first lead is placed in a first bore in the piston and a second lead is placed between the piston and a cutting edge formed on the barrel shaped member. When the piston is displaced relative to the rod and barrel shaped members, the rod shaped member travels through a second bore in the piston and pierces the insulation surrounding the first lead in the first bore, while the piston forces the second lead against the barrel shape member's cutting edge which penetrates through the insulation surrounding the second lead. As a result, the first lead is electrically coupled to the rod shaped member and the second lead is electrically coupled to the barrel shaped member.