Fixing member comprising an integrity control system

摘要

The invention concerns a fastening member comprising a threaded part ( 150 ) and a head ( 100 ) with which the threaded part can be turned in order to tighten the fastening member in a corresponding element. The head ( 100 ) is formed of a plate ( 110 ) in one piece with the threaded part ( 150 ) and a cap ( 120 ) covering said plate. The cap ( 120 ) comprises a recessed portion ( 121 ) in which an offset is provided to form a housing ( 128 ). The plate ( 110 ) comprises a guide finger ( 111 ) located inside the housing ( 128 ) to form a stop against which the cap presses in order to impart a rotational movement to the plate in the tightening direction. The cap ( 120 ) further comprises a remotely interrogatable electronic component ( 130 ) comprising a data storage means ( 132 ). Said component is held in the recessed portion ( 121 ) with its end ( 133 ) protruding into the housing ( 128 ) so as to strike against the guide finger ( 111 ) and cause the fracture of the component when any attempt is made to unscrew or untighten the fastening member.