Disclosed are Systems and methods for coupling a first panel to a second panel using a fastening system. The fastening system includes a fastener, a doghouse structure, and a seal assembly. The fastener includes a head assembly coupled to a collar using the doghouse structure. The head assembly engages the doghouse structure positioned on the first panel and the collar passes through an opening in the second panel to retain the second panel relative to the first panel. The seal assembly includes a seal and a seal carrier that is coupled to the fastener via a frangible connection.

Disclosed are systems and methods for coupling a first panel to a second panel via a fastening system. The fastening system comprises fastener and a doghouse structure. The fastener includes a head assembly coupled to a collar. The collar is configured to pass through and to retain the second panel via an opening formed in the second panel. The doghouse structure defines a chamber that is configured to receive and secure the head assembly. The doghouse structure is positioned on the first panel and is configured to pass at least partially through the opening.

A blind rivet insert having a head forming an annular flange and a shank extending from an underside of the head, and having a head end, a foot end and a bore extending from the head end to the foot end. The insert has a first bore segment near the foot end, provided with an internal thread, and a second bore segment near the head end whose diameter is greater than that of the first bore segment. The underside of the head includes an annular groove adapted for receiving a sealing ring in a mounted condition of the blind rivet insert. An annular retaining shank groove extends circumferentially around the shank, is arranged adjacent to the underside of the head, and retains the sealing ring in a preloaded position before mounting the blind rivet insert.

A blind rivet insert having a head forming an annular flange and a shank extending from an underside of the head, and having a head end, a foot end and a bore extending from the head end to the foot end. The insert has a first bore segment near the foot end, provided with an internal thread, and a second bore segment near the head end whose diameter is greater than that of the first bore segment. The underside of the head includes an annular groove adapted for receiving a sealing ring in a mounted condition of the blind rivet insert. An annular retaining shank groove extends circumferentially around the shank, is arranged adjacent to the underside of the head, and retains the sealing ring in a preloaded position before mounting the blind rivet insert.

A board-to-board fixture includes rivet sleeve having hollow tube with perforation inside, stop flange formed on the bottom side of hollow tube, operating space formed in the stop flange to communicate with perforation and expansion portion formed on the top side of hollow tube, and rivet rod having head, tapered impact portion formed on the bottom side of head, deformation portion downwardly protruded from the bottom side of impact portion for pressing against the top side of preset rivet gun socket at the operating space to generate deformation, increasing bump extending downward from the outer edge of the bottom side of deformation portion, breaking portion with a smaller round diameter formed on the center of the bottom side of deformation portion and shank downwardly extending from the bottom side of breaking portion to penetrate the perforation and the operating space through the expansion portion of rivet sleeve.

The invention is in the field of removable fasteners for use in clamping components together, where the fastener may be inserted into pre-drilled apertures in the components and used in situations where it is not possible to access the reverse of the components. The invention particularly relates to use in clamping components with very narrow pre-drilled apertures.

A fastener is provided. The fastener includes a housing with a housing opening and a collet body at least partially enclosed within the housing, the collet body includes a crown having a crown opening with a threaded section and a leg that extends from the crown and including a foot. The fastener further includes a screw with a head positioned in the housing opening, an upper threaded section, and a lower unthreaded section, where the housing opening and the crown include a set of splined protrusions and a set of splined recesses mated with one another, where the sets of splined protrusions and recesses include ramps and are designed to permit the collet body and the screw to transition into a free-spin configuration, and where a spring is designed to exert a return force on the collet body or the screw when the fastener is in the free-spin configuration.

Disclosed is a fastener that includes a nut with a threaded bore that includes a head on one end having three recesses, a cylindrical outer surface and a tapered ramp on the other end, a bolt that includes a head, a threaded portion engaged with the threaded bore, a recess next to the bolt head and an enlarged shank between the threads and the recess, where the outer diameter of the recess is smaller than a major diameter of the threaded bore of the nut and where an outer diameter of the shank is larger than a major diameter of the bolt threads, and a sleeve with a unthreaded bore positioned between the tapered ramp and the bolt head with one end crimped into the recess such that the internal diameter of the crimped sleeve bore is smaller than the major diameter of the threads on the bolt.

Disclosed is a fastener that includes a nut with a threaded bore that includes a head on one end having three recesses, a cylindrical outer surface and a tapered ramp on the other end, a bolt that includes a head, a threaded portion engaged with the threaded bore, a recess next to the bolt head and an enlarged shank between the threads and the recess, where the outer diameter of the recess is smaller than a major diameter of the threaded bore of the nut and where an outer diameter of the shank is larger than a major diameter of the bolt threads, and a sleeve with a unthreaded bore positioned between the tapered ramp and the bolt head with one end crimped into the recess such that the internal diameter of the crimped sleeve bore is smaller than the major diameter of the threads on the bolt.

A rivet assembly for securing a wire in electrical communication with a substrate having a hollow cylindrical body with a first opening at a proximal end and a second opening at a distal end. The rivet assembly further includes a wire with a portion in electrical communication with the cylindrical body. The rivet assembly yet further includes a compression mechanism configured for use selectively compressing the cylindrical body along an axial direction. Compression of the cylindrical body can cause diametric expansion of an outer diameter of the cylindrical body to retain the cylindrical body within a substrate. The rivet assembly additionally includes wire retention structure configured for holding the wire in electrical contact with the compressed cylindrical body.