Abstract: The invention concerns a part for supporting and fixing an electric or electronic component, comprising a compartment supporting the electric component, two clamps each engaged and in electrical continuity with a pin of the electric or electronic component arranged in the compartment between the two clamps and a removable closure cap. The invention is characterised in that a blade is fixed on the closure cap to cut a electric wire engaged and in electrical continuity with the two clamps so as to mount the electric or electronic component in series on the electric wire. Preferably, the supporting and fixing part comprises a block to act as support for the electric wire when it is being cut by the blade and apertures providing clearance for the two strands of the cut electric wire.

Abstract: The invention concerns a system for fixing an object to a plate via a washer, wherein the object is linked to the washer and the plate comprises a structure to retain the object by butting the washer against said structure. The invention is characterized in that said structure is a hemispheric or cylindrical conical dome of the plate. The dome has a convex or a concave surface against which the washer is butted. The invention also concerns a method for fixing an object on a plate via a washer designed to be linked to the object, characterized in that it consists in deforming the plate by swaging to provide it with a hemispheric or cylindrical conical dome and in driving the washer relative to the dome to retain the object on the plate by butting the washer against the dome.