A self-gauging electrical connector for coaxial cables with outer conductors of varied diameters is provided with a clamp ring coupled to a connector body with a bore. A mechanical grip and an electrical contact are retained within the bore. The mechanical grip and the electrical contact engage the outer conductor upon insertion of the outer conductor into the bore. The mechanical grip is displaced radially proportional to an outer diameter of the outer conductor. The electrical contact is displaced radial proportional to the radial displacement of the mechanical grip.