Clamping device for fixing a steering column unit for motor vehicles.

Clamping device for fixing a structural unit steering column for motor vehicles comprising: - a screw (3) fastening a first zone (1) of thread and a second zone (2) of thread, - one structural unit steering column with a housing (5) of the steering column, in which is located a thread (6) corresponding preassembly with the first zone (1) thread, - a thread (8) holding located axially in alignment with the thread (6) preassembly and separated therefrom by a gap (7) intermediate in the preassembly state, - a stirrup (10) in U-shape it is fixed to the housing (5) of the column direction by one of its two arms and the other arm of the thread (8) fastening is arranged, engaging after final assembly ear (11) of the bodywork of the motor vehicle in the slot (7) intermediate for binding the housing (5) of the steering column BODY ed motor vehicle, entering the screw (3) fastening in a recess (12) of the ear (11) shaped notch or hole and engaging in the side of the ear (11) opposite the thread ( 6) preassembled with the second zone (2) screwed into the thread (8) gripping so that the stirrup (10), deformed by the screwing movement, is in contact by its two arms (15 and 16) with the side surfaces of the ear (11) of the motor vehicle body and thus immobilizes the ear (11).