The invention relates to an assembly for securing a fastening element to a first component, wherein the first component has a passage opening for a shaft of the fastening element, said assembly comprising a securing element, which reaches around the shaft of the fastening element, wherein a head part of the fastening element and the securing element are arranged on opposite sides of the first component and the shaft of the fastening element engages in a receptacle of a second component for the frictional and/or interlocking connection of the two components. According to the invention, the securing element is pre-fastened to the second component before a first connection of the first component to the second component and is separated from the second component and reaches around the shaft of the fastening element after a first release of the connection between the first component and the second component.

A fastener including a screw configured to threadingly engage a drive sleeve and method for fastener operation. The fastener, in one example, further includes a collet body with legs that extend from a crown, where each of the legs includes a clamping foot that extends therefrom and wherein each of the clamping feet mate with a sleeve opening in the drive sleeve. The fastener further includes a housing that mates with the drive sleeve such that rotation of the drive sleeve is prevented and vertical translation is permitted.

A clamping device, in particular for use with an installation device characterized by a first component having an internal thread with a side which forms a first clamping surface either directly or indirectly via separate part, by a second component having an internal thread and an external thread which is axially displaceably but rotationally fixedly attachable to the first component, with respective internal threads of the first component and of the second component being designed so they can be jointly attached in a vertically adjustable manner to a carrier by means of a bolt element having an external thread, and by a counter nut which can be screwed onto the external thread of the second component, with the side of the counter nut facing the first said clamping surface forming a second clamping surface.

A suspension system for an aircraft auxiliary power unit located in a fuselage structure, the system including: struts (10), auxiliary power unit attachment brackets (51,52) for connecting the strut (10) to the auxiliary power unit (30), vibration isolators (5) for joining the struts (10) and the auxiliary power unit attachment bracket (51, 52), a cone-bolt (1) attached to the auxiliary power unit attachment brackets (51,52) and having a longitudinal threaded hollow, an inner bolt (2) partially located within the hollow of the cone-bolt (1) and threaded to it (1), an outer bolt (3) having a longitudinal through-hole and partially located within the hollow of the cone-bolt (1) and including an external thread that engages the thread of the cone-bolt (1), the inner bolt (2) extending across the hollow of said outer bolt (3).

A double-threaded connector or spacer according may be self-threading such that insertion into a mounting hole in a PCB will cause the interior of the mounting hole to become threaded to match the double-threaded connector or spacer. The double- threaded connector or spacer installed in a mounting hole of a carrier. A half circle portion of daughter card is held in place between the double-threaded connector or spacer and screw. The half circle portion of the daughter card is plated to make electrical contact with the double-threaded connector or spacer, for example, to allow for grounding of the daughter card via the carrier, e.g., PCB.

A fastener-retaining system (100) is configured to securely couple a fastener (102) to a substrate (104). The fastener-retaining system (100) includes a compression-limiting bushing (106) including a tube defining a central passage (132), and a retainer (130) positioned within the central passage. The retainer (130) includes a first portion that securely connects to the bushing, and a second portion that is configured to securely connect to a portion of the fastener.

A suspension system for an aircraft auxiliary power unit located in a fuselage structure, the system including: struts (10), auxiliary power unit attachment brackets (51, 52) for connecting the strut (10) to the auxiliary power unit (30), vibration isolators (5) for joining the struts (10) and the auxiliary power unit attachment bracket (51, 52), a cone-bolt (1) attached to the auxiliary power unit attachment brackets (51, 52) and having a longitudinal threaded hollow, an inner bolt (2) partially located within the hollow of the cone-bolt (1) and threaded to it (1), an outer bolt (3) having a longitudinal through-hole and partially located within the hollow of the cone-bolt (1) and including an external thread that engages the thread of the cone-bolt (1), the inner bolt (2) extending across the hollow of said outer bolt (3).

A fastener system for joining substrates of a workpiece with working and blind sides includes a nut member, a sleeve member and a bolt member. The nut member includes a nut bore with internal threads. The nut member is placed with the nut bore over a joining bore through the substrates on the blind side. The sleeve member includes an outer sleeve surface with a lubricious coating. The sleeve member is inserted in the joining bore from the working side. The bolt member includes a head portion, a threaded portion and a shank portion. The bolt member is inserted in a central bore of the sleeve member. The threaded portion engages with the internal threads of the nut member. As the bolt member becomes fully engaged, the shank portion causes radial expansion of the sleeve member, and the sleeve member provides an interference fit within the joining bore.

The present disclosure provides a tolerance compensation assembly, comprising a nut assembly (102, 103) and a holder (101), wherein the nut assembly comprises a mounting nut (301) and an adjusting nut (302), the adjusting nut (302) being configured to be at least partially received in the mounting nut (301), and the adjusting nut (302) being rotatable relative to the mounting nut (301) by means of thread fit so as to move relative to the mounting nut (301) along an axial direction of the nut assembly; and wherein the holder (101) has a mounting channel (211) and a holder connecting portion (215), the holder connecting portion (215) being configured to fit with a nut connecting portion (425) such that the mounting nut (301) is capable of being held in the mounting channel (211), and the holder connecting portion (215) and the nut connecting portion (425) being at least partially disposed within the mounting channel (211). The tolerance compensation assembly according to the present disclosure has a small size in the axial direction.

A fastener system for joining substrates of a workpiece with working and blind sides includes a nut member, a sleeve member and a bolt member. The nut member includes a nut bore with internal threads. The nut member is placed with the nut bore over a joining bore through the substrates on the blind side. The sleeve member includes an outer sleeve surface with a lubricious coating. The sleeve member is inserted in the joining bore from the working side. The bolt member includes a head portion, a threaded portion and a shank portion. The bolt member is inserted in a central bore of the sleeve member. The threaded portion engages with the internal threads of the nut member. As the bolt member becomes fully engaged, the shank portion causes radial expansion of the sleeve member, and the sleeve member provides an interference fit within the joining bore.