Abstract: A pipe connector comprising two members with respectively concave and convex mating co-operating ends and fitting together by an internally threaded sleeve retaining one of the members and tightened by being screwed onto the outer threading of the other member, this outer threading being extended by a threaded portion having a greater diameter than and the same pitch as those of the outer threading and being adapted to co-operate with a lock washer retained in a recessing formed in one of the ends of the sleeve.

Abstract: The present invention concerns an improved floating caged nut having a first cage in the shape of a U in cross-section in which a collar nut is retained in a floating manner, this first cage being housed inside a second cage also in the shape of a U in cross-section and whose legs have openings co-operating with protruding lugs provided on the legs of the first cage to thus permit the removable mounting of the first cage in the second cage, by simple pinching of the legs.

Abstract: The present invention relates to an improved threaded element forming for example a screw, which comprises a thread (F) whose bottom (3) comprises two arcs of a circle (4) with equal radii (r.sub.1) which are connected tangentially with the sides (2) of thread (F) and one central arc of a circle (5) with a larger radius (r.sub.2), and which is connected tangentially with the two arcs of a circle (4).

Abstract: A floating caged nut having a cage, a plate mounted within the cage and including foldable tabs, and a nut with a base flange mounted onto the plate and movable in a horizontal plane between the tabs and in a vertical plane due to side lugs projecting from the base flange and engaging openings formed in the opposite side walls of the cage.

Abstract: The present invention relates to a method of making a threaded insert, a tool for carrying out the said method and the insert thus obtained which presents the form of a cylindrical tube provided with an external thread and an internal thread, and with a plurality of imprints directed towards the axis of the insert and located inside the remaining and intact cylindrical shape of the insert.

Abstract: The invention relates to a bolt comprising a screw the threaded portion of which is provided with a guiding end, and a nut whose upper portion contains a self-locking washer with which is separably associated a ring internally concentric with the washer and ensuring the centering of the screw during its introduction into the nut.

Abstract: The present invention relates to encaged nuts manufactured either singly or in the form of a strip or band of such nuts.Said encaged nuts include essentially a nut (1) floatingly retained by a circlip (10) between the legs (9) of a support (2) of U-shaped cross-section whose base (3) is sandwiched between a lower strip (5) and an upper strip (4) which may be adhesively attached to any part or member of composite material.The encaged nuts according to the invention, whether used singly or in the form of a strip, allow assembling elements of a composite material such as for example panels.

Abstract: This invention relates to a nut including a resilient skirt portion generally frusto-conical in shape the wall of which comprises an external circular rib preventing the skirt portion from turning up after a member is fastened against a threaded element by the nut.