Abstract: A probe is disposed in an axial opening in an insulator. The wall defining the axial opening has an internal projection and the probe has a mating recess to define with the projection a detent relationship limiting the axial movement of the probe in a first direction. A shoulder on the probe abuts an insulator to limit the probe movement axially in a second direction opposite to the first direction. The probe has a bayonet portion positioned to engage a female member in a first connector with the probe in the second detent relationship. A ferrule on the insulator has a portion crimpable on the insulator to retain the insulator and the ferrule in a fixed relationship. A nut on the ferrule is fixedly retained between a lug on the ferrule and a sleeve on the ferrule. The probe end opposite the bayonet portion has a socket for receiving a pin in a cable. The cable has an insulator which can be disposed in the space within the ferrule.