A threaded fastening assembly composed of a bolt, a nut, a fixing pin, and a positioning piece is revealed. The bolt includes at least one first groove arranged axially on a cylindrical surface of a shank and at least one first threaded segment. The nut has at least one second groove disposed axially on an inner cylindrical surface thereof and at least one second threaded segment. The first and second grooves are aligned to form a locking space for mounting the fixing pin. The positioning piece has a first side with two ends connected to a second side and a third side correspondingly. Inner edges of the second side and the third side are facing and extending toward each other to form convex portions which are matched with the first grooves. The fixing pin is mounted in the locking space for fastening the bolt and the nut.

A cable tray support includes first and second rod openings each extending through one of first and second sides of a support body to allow first and second support rods to laterally enter the respective first and second openings. First and second lateral closure members are adjacent the respective first and second openings and are movable to closed positions to inhibit the respective first and second support rods, when received in the corresponding opening, from laterally exiting the corresponding opening.

An operating nut can include a body and a digital identification tag secured to the body, at least one of the body and the digital identification tag defining an outer surface of the operating nut. The body can define a central bore defining an axis and can include a working portion defining an end surface and a plurality of side surfaces defining a polygonal shape in a cross-sectional plane orthogonal to the axis; and a flange portion extending outward from the working portion in a radial direction with respect to an axis of the operating nut, the flange portion defining a first end surface and a second end surface, the central bore extending through each of the working portion and the flange portion.

A stiffening assembly (10) for stiffening an article (12) is disclosed. The stiffening assembly comprises a plurality of main modules (14) arrangeable on the article. Each main module comprises a body (16) and a receiving formation (28) on the body for receiving a portion of the article therethrough. The stiffening assembly further includes a fastening arrangement for fastening the main modules to one another. The fastening arrangement comprises first and second fastening formations (24, 26).

A coupling mechanism is provided for coupling a supporting element to a frame, and includes a base member and a C-shaped retainer. The frame includes a frame body and a leg member that has a leg body extending downwardly from the frame body to terminate at an enlarged leg end. The base member defines therein a recess for the enlarged leg end therein. The supporting element is coupled to a lower major surface of the base wall. The C-shaped retainer extends to be disposed about the leg body, and is configured to be detachably coupled to a surrounding wall of the base member for retaining the enlarged leg end in the recess.

An apparatus for fastening a component to an aircraft cabin attachment structure, the attachment structure having a fastening tube with a longitudinal axis. The apparatus has an internally bored sleeve rotatably positionable on the fastening tube and an external thread. A holding body connects to the component and has two spaced-apart limbs and a bearing surface enclosed by the limbs, and on which, an internal thread configured to the sleeve external thread, is arranged. A device fixes the holding body to the threaded sleeve and the fastening tube, the external and internal threads being non-self-locking. When the holding body internal thread presses against the threaded sleeve external thread, the threaded sleeve rotates until the external and internal threads align. The fixing device connects the threaded sleeve to the holding body in a rotationally fixed manner and fixes the holding body transversely with respect to the longitudinal axis.

An oval-shaped T-nut that is received within an oval receiver machined into the upholstered panel to be secured to a chair frame is provided. The oval shape of the T-nut prevents the oval-shaped T-nut from rotating when a screw is driven into the T-nut. Further, this eliminates the necessity of stapling the traditional plastic T-nut to the chair panel, thus saving time and money associated with the manufacture of an upholstered metal frame chair. In addition to the oval-shaped T-nut described herein, a novel U-shaped screw catch is also provided which cooperates with a barbed nylon or plastic push rivet to secure the upholstered chair panels to one another. Further, a method for connecting upholstered seat back panels to the tabs positioned on the back frame of a chair, utilizing the T-nut and the screw catch is disclosed.

Arrangement with a fastener (for the fastening of a covering part to a supporting part comprising a stud, in particular a part of the body of a motor vehicle. The fastener comprises a main body with a first fastening section comprising a cavity adapted to receive the stud, the cavity longitudinally extending along a longitudinal axis, and at least one resilient locking finger having a first end, connected to the main body, and a second end, extending within the cavity, and a catching portion, adapted to engage with the stud in order to fix the fastener to the supporting part. The cavity is laterally and axially accessible, and the catching portion comprises a first and a second fin separated by a gap, wherein the first and second fins face the cavity and the fins and the gap are adapted to support a threaded shaft of a stud and/or the head of a stud.

A coupling mechanism is provided for coupling a supporting element to a frame, and includes a base member and a C-shaped retainer. The frame includes a frame body and a leg member that has a leg body extending downwardly from the frame body to terminate at an enlarged leg end. The base member defines therein a recess for the enlarged leg end therein. The supporting element is coupled to a lower major surface of the base wall. The C-shaped retainer extends to be disposed about the leg body, and is configured to be detachably coupled to a surrounding wall of the base member for retaining the enlarged leg end in the recess.

An assembly includes a clip portion which includes a first flexible flange and a second flexible flange that each at least partially define a central retainer passage. A flexible hinge connects the clip portion to a structure. A tab is located adjacent an opposite end of the clip portion from the flexible hinge.