In general, in one aspect, the invention features a fastener having two mating pieces. One of the mating has a rigid surface of thickness q, and a hole in the surface, the hole including a slot defined by two generally parallel edges separated by a distance r. The other mating piece has a base and a pair of wings held above the base to define two generally parallel channels spaced to accommodate the two parallel edges of the slot, the channels having a thickness greater than q, the span of the w...

The end of a first member is fastened to the side of a second member via a releaseable rod. One end of the rod is threaded into a socket fixed in the side of the second member; the other end of the rod extends into a bore in the end of the first member. An internally threaded second socket is positioned in a transverse bore in the first member and said other end of the rod extends through the second socket. A conically ended setscrew is threaded into the second socket and engages a deep conical ...

In a fastening tool in which fastening members may be inclined as they are threadedly inserted together whereby almost no displacement load is applied to the members, a member having a bolt through hole with a tapered seat surface, and a fastening bolt that includes a bolt body provided about its outer periphery with a male thread, and a head provided on an end of the bolt body that has a diameter greater than that of the bolt body, in which the head has a lower outwardly curved tapered surface ...

A fastening device is disclosed for fastening siding around an opening defined by a building. The device includes a first and a second J-channel element which co-operate together in an abutting connected angular relationship relative to each other adjacent to the opening. The first element has an exposed portion which defines a miter cut disposed adjacent to the second element. The second element has an exposed face, the arrangement being such that in the vicinity of the miter cut, the exposed p...

A method of fastening and a fastening assembly are disclosed, where a nut may be retained in a grooved channel by a resilient retainer. The retainer has a central portion with an opening in registry with the threaded opening of the nut and also has two wings extending in opposite directions outward from the central portion. The wings have sharp edges to grip into the channel. A tool with projections is used to disengage the wings from the channel and permit the assembly to be slid along the groo...

A fastening device that is adjustable in length and diameter and which is visually attractive is provided. The device can be easily positioned about a wearer's hair and fastened thereabout, and is resistant to creeping down a hair bundle. The device comprises a body component having first and second ends with end connectors thereon for connecting the first and second ends together to form a cylindrical shape that can be positioned about a hair bundle. A plurality of body components can be connec...

A fastening mechanism for fixing a PCI bracket having a fixing piece in a casing is provided. The fastening mechanism includes a first mating member and a second mating member. The first mating member is fixed to the casing and includes a carrying piece for carrying the fixing piece and a fastening piece bending toward one end of the carrying piece. The second mating member includes a pressing piece for pressing the fixing piece, a first clipping piece bending toward one end of the pressing piec...

A fastening system for objects, such as pockets, that can be attached to an item of clothing in various positions includes a mechanism with an interlocking action for objects, e.g. pockets and a buckle located on the object to be fastened to the item of clothing, below the upper fastening region of each fastening strap. The lower section of the contact surface of the object to be fastened to the item of clothing is provided with one or more pocket loops arranged next to one another, their number...

A fastening device comprises an electrically conductive sheet metal nut element which may function to complete electrical connections and a plastic, electrically insulating cap member which covers the nut element. Even though plastic material such as that from which the cap member is made is pliable and exhibits a certain amount of plastic flow or "creep," the cap member and nut element are configured so that they can be tightly assembled to transmit high torques through the cap member to the nu...

A fastening element for fastening to a wall having an opening therethrough which is accessible only on one side of the wall, comprising a cylindrical upsettable shell having a flanged end. A cylindrical inset member having a flanged head is disposed in the shell, where the outside diameter of the head is equal to the outside diameter of the upsetting shell. Between the inset member and the upsetting shell, in an end zone adjacent the head, there is provided a material-closure, The underside of t...