Abstract: A coaxial connector element including a tubular body having an internal cavity, a rod secured against axial motion in the tubular body by a bead made from a dielectric material, such as glass, the axial rod protruding from the tip of the tubular body closed by the bead, a central contact having an axial hollow for its engagement around the rod within the tubular body, and an insulator between the central contact and the wall of the internal cavity within the tubular body. The central contact has near its tip, engaged in the axial rod an annular shoulder which protrudes inwardly into the axial hollow provided in the central contact, the angular shoulder penetrating into the axial rod.