The invention relates to an accessory for securing points d′arrêt on fencing épées, comprising a screw for securing the point d′arrêt which is located on the tip of a fencing épée, in order to close the circuit of the electric touch-detection device with which said swords are equipped. The invention includes a screw-coupling tool, characterised in that the screw includes a central axially-extending through-hole having a hexagonal or any other prism-shaped configuration, while the actuation end of the tool includes a first cylindrical or frustoconical segment so that it can be easily fitted to the hole in the screw. In addition, a collar is provided half-way along the length or height of the screw, which serves as an end-stop element.