Abstract: To provide a fastening structure for fastening a left-right screw intersection forming bolt, which has a simple structure and does not loosen. A right screw nut having a recess, an elastic member having a rotation-preventing protrusion and a tongue portion, and a left screw nut having a tapered surface and a recess are included. After the bolt is tightened with the right screw nut and the elastic member is mounted, the tongue portion of the elastic member is tightened while being pressed with the left screw nut, so that the tongue portion jumps up to the recess of the left screw nut, and the left screw nut is locked and fastened. As illustrated in FIG. 9, the fastening structure can also be configured by changing the right screw nut to a left screw nut, the elastic member to an elastic member, and the left screw nut to a right screw nut.

Abstract: A tolerance compensation arrangement for fastening first and second components with tolerance compensation in the distance between the first and second component, has a base unit with a cage element, a base element, a nut in the cage element, and an adjustment unit having a threaded sleeve with an outer thread and a dragging element. The thread of the threaded sleeve forms with the nut a first thread pairing of a first direction. A fastening screw can be inserted through an opening of the base unit and the adjustment unit, and the fastening screw is screwable into the base element via a second thread pairing of a second thread direction and is connectable to the adjustment unit via the dragging element, so that, when the fastening screw is screwed in, the adjustment unit is co-rotated and thereby moved into abutment with the second component.

Abstract: A lock nut and tang washer mechanism preloads and locks components in a rotating environment. A drive system mechanism preloads and locks the device in a rotating environment and provides a double locking safety requirement needed in most aircraft for applications operating in an enclosed environment. The mechanism holds a required torque for the duration of the drive system operating life without the need for periodic visual inspections.

Abstract: A fastening method for fastening using a fastener having a fastener pin and a collar. The method includes a mounting step in which, in a state in which a head portion of the fastener pin is positioned on one side of the portion to be fastened through which the fastener pin is passed, and a lock portion of the fastener pin is positioned on the other side of the portion to be fastened, the collar is mounted onto lock grooves. The method includes a fastening step in which, on the basis of an un-swaged portion height derived from the thickness of the portion to be fastened, the collar is swaged onto the lock grooves and the portion to be fastened is fastened.

Abstract: A self-drilling screw (10) having a head (20), a shaft (30) at least partially wearing a thread (35) and a drill point (40). The base material of the screw (10) including the drill point (40) is integrally manufactured from an austenitic 300 series steel with a surface hardness (uncoated) of 400-600 HV 0.3. The surface of the screw has a top coating of Zn—Ni with a Ni-content between 12-15% deposited on the austenitic base material. This self-drilling screw (10) is manufactured from a blank of raw austenite 300 series steel which is initially squeezed by cold forming to reduce its diameter in a first operation and, in following cold forming operations the head, the drill point and a thread are formed.

Abstract: Provided in the context of a bolt is a method for achieving antiloosening capability such as will make it possible for tightening operations to be carried out easily and rapidly, and such as will make it possible to obtain antiloosening effect in robust and reliable fashion.

Abstract: A lock nut is useable for setting a bearing to preload or endplay. A plurality of preload markings are circumferentially spaced apart on the nut. The distance between the preload marking corresponding to a preselected amount of preload applied or reduced on said bearing when the nut is (i) tightened to apply a preload force to said bearing or (ii) loosened to reduce a preload force on said bearing, respectively. A plurality of endplay markings are also circumferentially spaced apart on the nut. The distance between the endplay markings, corresponding to a preselected amount of endplay increased or reduced in said bearing when the nut is (i) tightened to reduce endplay on the bearing or (ii) loosened to increase endplay in said bearing. The use of endplay and preload markings enables setting of a bearing on an axle or spindle to either an endplay setting or a preload setting by adjusting the rotation of the lock nut according to the endplay markings or the preload markings, respectively.

Abstract: A fastener assembly of the present disclosure includes a grommet including a head having a through-hole formed therein and at least one leg extending downward from the head; and a pin configured with a head and a shaft inserted into the grommet. The grommet and the pin are integrally formed by a connection tip.

Abstract: The present invention relates to a washer having a having central hole, a bolt under head engaging surface (under head surface) and a bearing engaging surface (bearing surface) with a serration on both surfaces, wherein the serration on the bolt under head engaging surface comprises a saw tooth structure, the edges of the saw tooth structure in top view of the bolt under head engaging surface of the washer have a boomerang-like shape, the bolt under head engaging surface has a chamfer on its inner periphery, the serration on the bearing engaging surface comprises a plurality of teeth which in top view of the bolt under head engaging surface run in the direction from the inner to the outer circumference of the washer surface and which are inclined with regard to radially extending straight lines originating from the washer center, and the top sections of the edges of both the teeth and the saw tooth structure in cross-sectional view of the serrations are rounded.

Abstract: A side handle assembly comprises a handle configured to be gripped by a user, a rod coaxially coupled the handle and rotationally fixed to the handle, and a clamp coupled to the rod. The clamp includes a flexible band enclosing an area and having a first end and a second end, a first connection block coupled to the first end of the flexible band, and a second connection block coupled to the second end of the flexible band. The rod includes an annular shoulder abutted with the first connection block and a threaded portion received within a threaded bore of the second connection block. In response to the handle being rotated in a first direction, the second connection block is moved closer to the first connection block along the threaded portion of the rod, decreasing the area enclosed by the flexible band.

Abstract: The present disclosure provides a screw and a screw assemblage. The screw includes a screw head and a screw shaft which protrudes from an underside of the screw head and has a self-forming or self-cutting thread, wherein the underside of the screw head has a bearing area and at least one annular recess extending around the shaft between the bearing area and the shaft, wherein a coating made of an elastic sealant is attached to the underside of the screw head.

Abstract: A self-clinching and self-piercing construction element for attachment to a plastically deformable metal panel. The construction element includes a body portion with a central axis and a punch portion being coaxial with the central axis and extending from the body portion. A pilot embossment is coaxial with the central axis and extends from the body portion such that the pilot embossment is concentrically disposed between an annular-shaped surface of the body portion and the punch portion. The pilot embossment being configured to engage and plastically deform the metal substrate such that the metal substrate flows into a recessed pocket defined in an outer peripheral surface of the punch portion. A plurality of spaced apart lugs axially project outwards from the annular-shaped surface and extend radially outwards from the pilot embossment.

Abstract: The invention relates to a decorative article with a system (7) for interlocking two portions (5, 6) of at least one part (3, 4), comprising a screw (8) and nut (9) assembly which passes through each portion (5, 6) and is intended to press the two portions (5, 6) against each other by screwing. According to the invention, the interlocking system (7) comprises a flexible safety device (13) so that the screw (8) and nut (9) assembly can continue to be screwed and unscrewed whilst elastically preventing relative displacement between the screw (8) and the nut (9) below a predetermined torque.

Abstract: A security plug (10) adapted to be inserted into the female socket (18) of a fastener (20) to prevent a tool, such as an Allen key, engaging in the female socket. The plug (10) has an outer surface (22) complementary to the female socket (18) and a retaining member (14) that retains the plug (10) in the female socket (18), and at least one removal portion (26, 70) adapted to be engaged by a second tool (100), whereby engagement of the second tool (100) and the plug (10) allows forces applied by the second tool (100) to the plug (10) to withdraw the plug from the female socket against the action of the retaining member. The second tool and the removal portion (26, 70) may have complementary self-holding tapers and the retaining member (14) may be a magnet or one or more biased members that engage side walls(s) of the female socket.

Abstract: Expandable collet bodies with sectional finger-based anti-rotation features are disclosed. The collet body comprises not only a plurality of gripping finger as a first part of a two-part anti-rotation means (ARM), but also a first part of a two part translation arresting means (TAM), which may or may not be sectional in nature and the TAM prevents over translation of a collet body within the work piece(s), and cooperates with a second part of the TAM associated with a work piece or an auxiliary structure. In this manner, a collet body inserted into a work piece or auxiliary structure will not accidentally be pushed beyond the blind side of the work piece(s) during insertion or initial clamp-up.

Abstract: A socket includes a housing having a first end dimensioned and configured for cooperation with an associated wrench and a second end dimensioned and configured for engagement with a locknut. The second end includes a first plurality of magnets disposed to maintain a single locknut against the second end, the second end and a second plurality of magnets disposed to maintain the second end against an associated housing with the associated locknut disposed intermediate the second end of the socket and the associated housing. The second end of the socket including a plurality of depending feet dimensioned and configured for meshing engagement with the locknut whereby rotation of the socket causes rotation of the locknut when the locknut is engaged with an associated externally threaded connector to move the locknut axially along the external threads of the externally threaded connector.

Abstract: An apparatus providing mating alignment between internal threading of a rivet nut and the external threading of the mandrel of an unclaimed installation tool before anchoring the rivet nut in a hole in a substrate, or the external threading of an unclaimed threaded fastener after anchoring in the substrate hole. The improvements include a bushing sleeve seated in a counterbore in the rivet nut, for guiding the external threading of the mandrel or fastener to the internal threading of the rivet nut. The sleeve also enables play during upset of the rivet nut, and provides visual confirmation whether the rivet nut has been properly anchored in the hole of substrate.

Abstract: Certain aspects are directed to an anti-theft wheel locking system with independent locking mechanisms configured to protect the wheels and rims of an automobile is disclosed. The anti-theft wheel locking system comprises a fastener with a hollow chamber located on one end of the fastener and a plurality of lock pin slots disposed around an exterior of the fastener; a detachable lock with a plurality of retractable lock pins that match the design and dimensions of the hollow chamber and the lock pin slots respectively; a cap that screws onto a threaded head of the fastener; a cap key configured to unlock the cap via the unique key protrusions located on a bottom of the cap key; and an adapter configured to install and remove the fastener when the detachable lock is removed.

Abstract: A self-drilling screw, particularly for use in a security screen employing leveraged clamping. The self-drilling screw comprises a head and a shank. A drill bit is formed at one end of the shank away from the head with a thread extending along the full length of the shank, including the drill bit. The thread on the drill bit increases holding strength.

Abstract: The present disclosure relates to a blind fastener and a method of installation thereof. The blind fastener comprises a sleeve and a mandrel. The sleeve comprises a first sleeve end, a second sleeve end, and a cavity extending from the first sleeve end to the second sleeve end. The mandrel is configured to be at least partially received by the cavity of the sleeve. The mandrel comprises a first mandrel end disposed adjacent to the first sleeve end and comprising an enlarged portion having a diameter greater than a diameter of the cavity, a second mandrel end comprising a pull region, and a shank region extending intermediate the first mandrel end and the second mandrel end. The pull region comprises an axial length no greater than four times a diameter of the shank region and is configured to be engaged by an installation tool.