| 摘要 |
The invention relates to a fastening bolt (10) comprising: A screw (11), said screw having a threaded portion (17) and a terminal portion (18) whose diameter (19) is less than that of the threaded portion, an end surface (21) of said terminal portion comprising a transverse opening groove (22); A nut (30) comprising a threaded body (32) and an unthreaded crown (34) drilled with at least two holes (35) diametrically opposite to one another; A rod (23), able to fit in the groove of the screw and in the two lateral holes of the nut to lock the bolt; the threaded rod of the nut comprises a driving portion (38), as well as a chimney (34) less thick than the driving portion; the nut comes from a method comprising an elliptical deformation of the chimney previously in a circular shape. |
