POSITIVE LOCKING FASTENER

The invention relates to a positive locking fastener comprising: a screw (1) having a radial hole (120) at a threaded portion (12); a nut (2) having a tightening portion (21); a cap (3); and a pin (4). The cap has a locking portion (31) intended to cover the threaded portion and an immobilising portion (30) intended to engage with a tightening portion of the nut. The locking portion comprises at least one pair of diametrically opposed openings (32) suitable for allowing a pair of openings to be aligned with the radial hole, in order to allow the pin to be inserted and thus lock the fastening regardless of the relative position of the nut with respect to the screw. The invention also relates to a method for implementing the fastener according to the invention. 本发明涉及一种主动锁闭紧固件，包括：-螺丝（1），所述螺丝在螺纹部分（12）上具有径向孔（120）；-螺母（2），具有夹持部分（21）；-盖子（3）；-销钉（4）。盖子（3）具有旨在覆盖螺纹部分（12）的锁闭部分（31）和旨在与螺母（2）的夹持部分（21）啮合的紧固部分（30）。所述盖子的锁闭部分（31）具有至少一对沿直径相对的开口（32），其适于允许一对开口（32）与径向孔（120）对准，以允许将销钉（4）插入到上述径向孔和开口中，从而无论螺母（2）相对于螺丝（1）的相对位置如何，都能将紧固件锁定。本