An anti-theft locking bolt assembly is disclosed. The assembly comprises an anti-theft bolt threadedly attachable to an article to be protected, a bolt cap snugly fitting into a bore on the head of the anti-theft bolt, a lock cylinder housing rotatably connected to the head of the anti-theft bolt via one or more ball bearings, the lock cylinder housing configured to cover the bolt cap and a locking cylinder and to provide means to prevent removal of the bolt cap. The anti-theft locking bolt assembly is suitable to lock a vehicle wheel and also to replace a spark plug of an combust engine to prevent unauthorized use of the vehicle.

The present patent discloses a backboard fastener, comprising a male buckle and a female buckle; the male buckle and the female buckle are fitted to each other; a plurality of barbs are provided at one end of the male buckle, while a pressing face is provided at the other end thereof; and, a plurality of externally circular barbs are provided on the female buckle, an enlarged opening is provided at one end of the female buckle, and bumps corresponding to the barbs are provided inside the female buckle. The present patent has a simple structure, solves the problem of nail or screw rusting, does not need any mounting tool, and has a plurality of barbs so that falling-off is prevented. The present patent is suitable for components of various thicknesses and various occasions.

The present patent discloses an expansive fastener, comprising a male buckle and a female buckle, wherein the male buckle comprises a main body, round-head bumps and a front opening, the front opening being located at a front end of the body and being conical, the circular head bumps being located in front of the main body and behind the front opening, a rear end of the main body being connected to a pressing face; and, the female buckle comprises a main body, grooves, an enlarged opening, externally circular barbs and a cone, the enlarged opening being located at the rearmost end of the main body, both the grooves and the cone being located inside the main body, the externally circular barbs being sheathed outside the main body. With the round-head bumps, the detachability is excellent and it is convenient for mounting and replacement.

A fastener system includes a bolt and a retainer. The bolt has a first end and an opposing second end, wherein a recess having a predetermined shape is defined in the first end of the bolt. The retainer includes a first end having a predetermined shape configured to be inserted within the recess in the first end of the bolt and a second end configured to couple about the second end of the bolt. A method of fastening parts together with the fastener system includes inserting the first end of the retainer into the recess of the bolt, deflecting and/or rotating the retainer in a direction to bring the second end of the retainer into proximity with the second end of the bolt, and securing a nut to the bolt.

An assembly having a chassis, two supports with a plate and a guide, a nesting system with a bore, a reservoir containing an extinguishing fluid and with two fastening tabs, two bearing tabs and a peg, and a fastener. The reservoir is able to move in translation between a premounting position in which each fastening and bearing tab rests on a plate and each guide guides the fastening and bearing tabs to align the peg and the bore, and a mounting position in which each fastening tab rests on the plate, the peg is introduced into the bore, the bearing tabs no longer rest on the plates and the fastener fastens each fastening tab to the plate. Such an assembly allows the reservoir to be withdrawn and put in place quickly and easily.

A valve includes a set screw that is screwable into and out of a complementary female threaded opening in a valve part for changing a setting of the valve, for changing an adjustable flow restriction of the valve, in which the set screw includes a free outer end that projects outside the valve part, and a gripping part on its free outer end for a tool to be engageable thereupon. The free outer end of the set screw includes a male thread onto which a locking nut is screwed. A protective cap is provided for covering the free outer end, that includes a first cap portion with a rotation space for fitting freely rotatable over the locking nut, and a second cap portion with a complementary female thread that is screwed onto the male thread towards a locked position.

A bolt retainer, to position a bolt within a bolt receiving element of a component, is disclosed. The bolt retainer may include a tube structure. The bolt retainer may further include bolt engaging elements that extend from an inner surface of the tube structure to engage with the bolt. The bolt retainer may additionally include component engaging elements that extend from an outer surface of the tube structure to engage with the component.

An acousto-optic device may include an acousto-optic component carried by a chassis, and a fastener assembly for removably securing a cover to the chassis. The fastener assembly may include a base sleeve having an enlarged head, and a tubular body and extending through a cover passageway. The fastener assembly may include a retainer sleeve having a threaded interior secured to the threaded exterior of the base sleeve to define an anchor member, the anchor member having a threaded interior. The fastener assembly may further include a fastener, a shaft having a threaded exterior opposite the enlarged head and to be threaded through the threaded interior of the anchor member to capture the fastener to the cover and movable through the chassis passageway for removably securing the cover to the chassis.

A fixing device capable of reducing a burden on an operator when adjusting an inclination of communication equipment is achieved. A fixing device includes: a first jig configured to fix communication equipment; a second jig configured to rotatably support the first jig about a rotation shaft; a ratchet mechanism configured to be capable of switching restraint or permission of rotation of the first jig in one direction with respect to the second jig due to weight of the communication equipment, and permit rotation of the first jig in another direction with respect to the second jig; and a biasing member configured to store biasing force when the first jig rotates in one direction with respect to the second jig due to weight of the communication equipment, and bias rotation of the first jig in another direction with respect to the second jig.

An apparatus for securing a panel to a structure is provided. In one embodiment, the fastener includes a fastener having a fastener head and a threaded tail, and the fastener may be disposed through a structure and an external panel. The apparatus also includes a retainer housing positioned on the fastener head, where the retainer housing is detached from the fastener. A spring engaging the fastener and the retainer housing is also included within the retainer housing.