Abstract: The invention relates to a fastener (10) for attaching together workpieces (50a, 50b) having aligned holes therethrough, the fastener (10) comprising a shank portion (11) and a head portion (13) provided at one end of the shank portion (11), the diameter of the shank portion (11) and/or of the head portion (13) being selected such that the fastener (10) can be installed in the aligned holes in close tolerance. The fastener (10) further comprises an oversizing structure (20), said oversizing structure (20) being firmly bonded to at least a part of the shank portion (11) and/or the head portion (13) in order to oversize at least the part of the shank portion (11) and/or the head portion (13) such as to allow the fastener (10) to be installed in aligned holes (60a, 60b) having a diameter larger than that required for the fastener (10) without the oversizing structure (20).

Abstract: The invention concerns a metal attachment for providing an electrically conductive surface through the entire thickness of structural elements to be assembled. The attachment thereby comprises a head (12) and a smooth shank (14) extending along an axis of revolution, characterized in that the shank comprising at least one conductive portion (24) and one lubricating portion (22) disposed along the axis of revolution of the attachment along at least one length of the shank. The attachment according to the invention provides a conductive surface through the entire thickness of the structure in which it is installed. The attachment according to the invention is intended, in particular, for aeronautical applications.

Abstract: A fastener is provided for securing a first panel to a second panel. The fastener includes a stud insertable through apertures in the first and second panels. The fastener further includes a pivoting handle assembly with a handle operatively connected to a stud head and pivotal between an upright position generally perpendicular to the first panel, and a folded position generally parallel to the first panel. A biasing mechanism is connected to the stud head and the handle that biases the handle outward relative to the stud head. A locking pin is connected to the stud head and the handle and is in connection with the biasing mechanism to hold the handle in the upright position or the folded position. A fastener is also provided for securing together the first and second panels, including a grommet, a receptacle and an insert in threaded engagement with an interior of the receptacle.

Abstract: A fixing element for components of an assembly, comprising a rod which is formed by a cylindrical shaft and an end, the rod being a metal component which is at least partially surface-treated by means of anode oxidation and coated over at least a portion of the cylindrical shaft with a lubricating coating. Such a fixing element enables the electrical continuity to be ensured with the components during mounting with moderate interference in the assembly.

Abstract: A pipe joint provided with a joint main body having a tapered female screw portion on an opening end, and a cylindrical retainer having a male screw portion screwed into the female screw portion and plural small-disc continuous bodies each of which is composed of two or three small discs for pipe fixation embedded in the male screw portion along with the thread as a part of the small disc protrudes from a peripheral side and another part of the small disc protrudes from an inner peripheral face.

Abstract: A lock nut device having a nut setting member fitted loosely to an outer circumferential part of a threaded shaft; split nuts divided in two in axial direction and fitted to envelope the outside of the nut setting member and fitted to the threaded shaft, the slit nuts having inner threads and a locking groove into which the nut setting member, at an inner surface of the nut setting member, is fitted and having an outer tapered thread at an outer circumferential part; and a lock nut having an inner threaded tapered surface in threaded engagement with the outer tapered threaded surface of the split nuts. To fix the nut setting member the threaded shaft, the nut setting member is placed around the outer circumferential part of the screw shaft and tightened to a prescribed position. The split nuts divided in two are fitted so as to envelop the outer circumference of the screw shaft and the nut setting member.

Abstract: A nut includes a first half having a short shank with an internal screw thread therethrough and an external screw thread thereon and a second half with a threaded bore. The internal screw thread of the first half has a first pitch while the external screw thread has a second screw pitch. The second screw pitch has constant first and second radii. The second radius is shorter than the first radius relative to an axis of the first half. The first screw pitch has constant third and fourth radii. The third radius is longer than the fourth radius relative to the axis of the first half. The third radius has a length at least equal to or longer than the second radius.

Abstract: An attachable vehicle hand brake lock assembly capable of being selectively attached over the end of a push button-activated hand brake to prevent its release. The lock assembly includes a cylindrical shaped body designed to be placed longitudinally over the upward extending end of the hand brake handle. The body includes an upper lock, a central threaded section, and a lower, threaded clamping section. The lock assembly also includes an outer sleeve with internal threads capable of being interconnected with the threads on the body enabling the sleeve to be moved upward and downward over the body during use. When initially attached to the handle, the lower section which is made up of two clamping arms is slanted and biased outward away from the outer surface of the handle to enable the lock assembly to slide easily over the handle. When the sleeve is rotated and moved downward over the clamping arms, their inner surfaces are forced inward against the handle to hold the lock assembly in place thereon.

Abstract: A fitting for cables, tubes and like parts has an externally threaded sleeve one end portion of which is constituted by an annulus of deformable axially extending prongs alternating with slots. The radially outer ends of the slots are offset with reference to the radially inner ends in the same direction circumferentially of the sleeve. The nut of the fitting has an internally threaded end portion and a frustoconical deforming surface which deforms the prongs radially inwardly when the nut is screwed onto the sleeve. The deforming surface is provided with one or more male and/or female detent elements each having a blocking flank which engages an adjacent deformed prong in response to attempted unscrewing of the nut. The inclination of the blocking flank or flanks matches or approximates the inclination of the slots, at least when the nut meshes with and its internal surface deforms the prongs of the sleeve.