Abstract: A power drive unit is configured to comprise a heat sink, a power module pressed by a press member to the heat sink to be fastened thereto and a spring member that has a substantially circular shape and is installed between the power module and the press member. With this, the power module can be fastened to the heat sink without incurring layout limitation, degradation of heat release performance and the like. Also, since the power drive unit further includes a projection that protrudes from the press member to be engaged with an engagement hole bored at the center of the spring member, engagement of the projection of the press member with the engagement hole of the spring member functions to prevent displacement of the press member relative to the spring member, thereby making loads acting on the power modules uniform.

Abstract: The clip of this invention is at least comprised of a flange part and a leg part molded integrally with the flange part hanging down therefrom. The leg part of the clip is inserted in an open hole of a mounting plate so as to clamp and lock the mounting plate together with the flange part of the clip. The leg part is comprised of a pair of elastic locking pieces hanging down from the flange part, a connecting part connecting the other end of the elastic locking pieces and a pair of cantilever locking pieces extending from the connecting part in the direction of the flange part. In the elastic locking pieces, there is molded a locking part which can lock in the lower part of the mounting plate passing through the open hole so as to clamp the lower part which is one side of the mounting plate. The locking part molded in the elastic locking pieces has an elasticity that can make it bypass welding spatters attached around the open hole of the mounting plate and can prevent wobbling with respect to the open hole.

Abstract: Each clip 1 is fitted into a cutaway groove portion 6 of a pedestal portion 5 of each assembling portion 3 provided on a bottom surface portion of a console box 2. After that, a positioning boss 7 is fitted into a long hole 43 formed in an attachment receiving member 41, and at the same time, a fitting head portion 28 of each clip 1 is fitted into each long hole 42 formed in the attachment receiving member 41. As each fitting head portion 28 is fitted into each long hole 42 formed in the attachment receiving member 41 and a boss portion 22 slides in the cutaway groove portion 6. Each of a pair of elastic locking pieces 31 is elastically locked with the periphery of each longer side portion of each long hole 42.

Abstract: A connection device for fastening two expanded cellular confinement structures includes an insertion member having insertion ends, an insertion member extension, an integral shank, and a handle member. A cellular confinement system includes first and second webs of cells made from strips bonded together in spaced apart areas. The strips form walls of the cells and at least some of the cells define open slots. At least one connection device fastens the first web and the second web together through the open slots. A method of fastening two expanded cellular confinement structures includes aligning two expanded cellular confinement structures; inserting an insertion member of a connection device through open slots; and turning the connection device.

Abstract: The present invention is directed to mounting devices, and in particular to a universal tool-less cam lock mount for releasably mounting an object on a structure, including structures of the type commonly referred to as a “slatwall”. The present mount comprises a mount housing, first and second engagement members, and a cam lock assembly. The cam lock assembly comprises a cam mechanism having a cam for moving at least one of the engagement members between at least a locked position and an unlocked position as the cam is rotated.

Abstract: A spring loaded spacer for fastening components and control units together with touch control face plates or panels wherein the spacer has a shank portion nested in a barrel portion, one end of the barrel portion being connected to a chassis or the like and its shank portion being connected to one or more printed circuit boards and/or components, and wherein the shank portion is spring loaded within the barrel portion and is adapted to receive one or more printed circuit boards and/or components under tensioned engagement.

Abstract: A heat sink includes a cooling member to dissipate heat, and a fixing member for mounting fasteners. The cooling member includes a base and a number of fins extending from the base. The cooling member and the fixing member are independently formed, and the fixing member is fixed to a bottom of the base of the cooling member via fixing means.

Abstract: A thermal module includes a fin assembly, a heat spreader, a heat pipe connected between the fin assembly and the heat spreader, and a securing plate. The securing plate has at least three resilient members secured on a bottom surface thereof. Each of the resilient members has a capability to deform resiliently along a direction perpendicular to the bottom surface of the securing plate to resiliently press the heat spreader to an electronic component.

Abstract: A fastener includes a fastener body having a pair of legs. A shoulder portion causes the legs to be elastically engaged with inner edges of a mounting aperture when the fastener is inserted into the mounting aperture. A gripper portion includes a pair of gripper arms that interpose an insertion rib between a pair of opposite gripper surfaces of the pair of gripper arms when the fastener is fitted to the insertion rib. An engagement projection is formed on any one of the pair of gripper surfaces and extends from one of the pair of gripper surfaces to a height exceeding half of the distance between the pair of gripper surfaces so as to engage with an engagement slot formed on the insertion rib.

Abstract: A long hole of a seat plate member is fittingly inserted to a fitting head portion provided on an upper surface of a flat plate portion of a clip in an upright posture, so as to attach the clip to the cutaway groove portion with the seat plate member in contact with a flat plate portion, and the fitting head portion is fitted to a long hole formed in an attachment receiving member. As the fitting head portion is fitted to the long hole, the boss portion moves within the cutaway groove portion to bring the seat plate member into contact with the attachment receiving member and to elastically lock a pair of elastic locking pieces with the periphery of each longer side portion of the long hole.

Abstract: Improvements to panel fastening clips, especially to those used in curtain and/or lateral airbags, of the kinds of clips that are formed by a surface and/or several flexing arms that are designed to be located in the outer part of the panel into whose opening they are inserted, including several feet that are more or less elastic and that tend to converge at their ends in the general shape of an inverted “V” in the direction in which the clip is inserted, as well as several wings whose ends work against the lower surface of said panel and which ensure that said clip is fastened to said panel, characterized by the fact that the ends of said wings have an enlarged working surface against the lower surface of said panel.

Abstract: A segmented blade comprised of overlapping blade segments is disclosed herein. Each blade segment overlaps with adjacent segments thereby providing for an overlapping joint between segments. The overlapping joint reduces erosion and/or washout of the underlying moldboard. Further, in one embodiment, the overlapping joint may include a connector hole such as a bolt hole through which a bolt detachably connects the overlapped sections of adjacent blade segments with the moldboard. Such a connection increases the strength of the connection as well as the strength of the moldboard in the region of the connection. This allows for smaller blade segments to be used and allows for segments which are of a suitable size to be manhandled by a single operator without jeopardizing the strength of the moldboard and/or the longevity of the moldboard.

Abstract: A plug for retaining wire on a substantially vertical elongate post having an inverted substantially L-shaped slot that opens into a substantially horizontal elongate wire-introducing portion and ends in a substantially vertical elongate wire-retaining portion, wherein the plug is adapted to friction fit in the wire-introducing portion to substantially horizontally overlap wire previously received in wire-retaining portion.

Abstract: An attachment structure of a clip and a mounting-subject member is provided which enables the clip to easily be attached to the mounting-subject member and which can prevent the dislodgement of the clip from the mounting-subject member in the attached state. This attachment structure is intended to attach a clip 10 including a flange portion 12 and locking legs 13 and a mounting-subject member 30 together.

Abstract: This clip (10) for holding two parts together comprises means that snap into an opening in the first part and a central housing (26) for receiving and retaining a male portion on the second part by means of catches (28, 29). The clip (10) comprises spring means allowing sideways displacement of the catch (28, 29) so that it occupies either a locked position in which it projects into the central housing (26) to prevent axial movement of the male portion (27), or a position of release of the male portion (27) in which it is withdrawn from the central housing (26). The clip is also provided with means for causing the catches (27, 28) to move to their locked positions automatically by snapping the clip (10) onto the first part.

Abstract: In a two-member assembling structure in which a clip mounted to a pedestal of an attachment member is inserted into a clip hole of a mating member, the clip includes a pedestal coupling portion coupled to a rib of the pedestal, an engaging arm adapted to pass through the clip hole while undergoing elastic deformation when the clip is inserted into or removed of the clip hole, an engaging surface formed on an outer side surface of the engaging arm and capable of engaging with a hole edge of the clip hole, a stable portion extending from the engaging surface and opposed to the rib of the pedestal so as to be capable of contacting therewith, and a regulating portion 26 protruding toward the rib of the pedestal from a position in the vicinity of the stable portion. As the pedestal of the attachment member, there are prepared at least three kinds of pedestals for low retention, medium retention, and high retention.

Abstract: Systems and methods for installing row-mounted suspended light fixtures. Each of a row of suspended light fixtures includes brackets disposed on opposite ends of the fixture. Each bracket includes a slot configured to slidably receive an adjustment clip coupled to a support member, such as a ceiling cable or pendant. Each adjustment clip includes first and second segments disposed at a non-zero, acute angle relative to one another such that a space separates the first and second segments. The space is configured to receive a portion of one or more brackets associated with the adjustment clip, proximate the bracket slot(s). An operator can install the light fixtures by positioning a fastener through each adjustment clip, outside the bracket slot(s). He also can adjust an alignment and balance of one or more of the light fixtures by sliding one or more of the adjustment clips along the slot(s) associated therewith.

Abstract: An electric assembly includes a heat sink defining a through hole and a notch communicating with the through hole; a circuit board defining a fixing hole; and a fastening assembly. The fastening assembly includes a fastener comprising a stem, a head connected one end of the stem, and a clamp connected to an opposite end of the stem; a limiting member comprising a main body slideably disposed on the stem and a limiting portion extending from the main body, the main body received into the through hole, and the limiting portion engageably inserted into the notch; and an elastic member disposed around the stem and between the head and the main body. Wherein the limiting portion is capable of sliding out of the notch and against the heat sink to compress the elastic member.

Abstract: Fastening devices disposed on a housing. Each of the fastening devices has a base, a fastening piece, a clamping piece, and an elastic piece. The clamping piece swings toward the base, and then a jamming portion of the clamping piece fastens a fastening portion of the fastening piece such that the fastening piece can be located on a fastening position and the base can be covered with the clamping piece. When users push the housing and the fastening devices into a installation hole of the ceiling, two braking portions of the fastening piece are swung downwardly by colliding with the ceiling such that the clamping piece is resorted to original position to be located on a released position via the elastic piece, and the clamping piece is opened from the base, so that an abutting portion of the clamping piece abuts against the ceiling.

Abstract: An energy absorption (EA) member is provided with a clip, and a structure for securing the EA member. A clip 20 has a flange 21, a shaft 22 projecting from the flange 21, an anchor 23 spreading from an end of the shaft 22, a cut 24 provided in the anchor 23, and a locking section 30 projecting from the flange 21 on a side opposite the shaft 22. The locking section 30 has a cylindrical upright segment 31 standing upright from the flange 21, and a resilient locking piece 32 projecting laterally from the side surface of the upright segment 31. The EA member 1 is put on metal panel 2A or 2B while the clip 20 is inserted into a hole 4 provided in the metal panel 2A or 2B. A projecting point 40 is passed through the hole 4, to hold the EA member 1 to the metal panel.

Abstract: A cable bend guide includes a curvilinear wall and a mounting clip interconnected with the curvilinear wall. The mounting clip has first and second spaced apart wire hooks adapted to engage at least one wire of a wire basket. The cable bend guide also includes a retaining tab interconnected with the curvilinear wall and adapted to engage another wire of the wire basket.

Abstract: A device for fastening an add-on part to a support part is equipped with a fastening bracket, which has a flat cover plate and, at opposite sides, bracket arms which are attached to the cover plate, and with a bearing part which can be connected to the fastening bracket. The bearing part has a receiving space in which the cover plate of the fastening bracket is mounted so as to be rotatable between a locking position, in which the bracket arms engage behind the support part, and a release position in which the bracket arms are not in engagement with the support part. In this way, an add-on part can be connected to and disconnected again from a support part in an efficient and reliable manner.

Abstract: A clip-mounting seat for mounting a clip to a vehicle interior component is disclosed. The clip includes a pillar-shaped axial portion. The clip-mounting seat includes a clip seating section, the clip seating section having an engaging hole for engagingly receiving the axial portion of the clip, and a pair of guide edge portions extending to the engaging hole from a side of the clip seating section to thereby form a tapered silt for allowing the axial portion of the clip to be slid along the pair of guide edge portions and allowing the axial portion of the clip to be guided into the engaging hole.

Abstract: A heat dissipation device includes a base, a connecting member and a wire-shaped clip. The base thermally contacts with an electronic component mounted on a printed circuit board. The connecting member encloses the base therein and is secured to a periphery of the base. A plurality of clasps extends upwardly from the connecting member. The clip is clasped by the clasps of the connecting member to be attached thereto. The clip is pressed downwardly to engage with a plurality of hooks of a bracket around the electronic component of the printed circuit board to make the base intimately contact with the electronic component.

Abstract: A connection assembly for fastening an attaching element on a support (10) comprises a holding clip (16), which can be inserted into a mounting opening (20) of the support (10) and has holders (54) for axially fixing the holding clip (16) to the support (10), and a pin (12), which can be reversibly attached to a coupling piece (14) fastened to the attachment element and inserted into the holding clip (16). The pull-off force of the pin (12) in an intermediate position of the connecting assembly, in which the pin (12) has a first orientation relative to the holding clip (16), is larger than in a mounting position of the connection assembly, in which the pin (12) also has the first orientation and is inserted fully into the holding clip (16).

Abstract: A box sealing belt includes two sealing bands, a gap band and two fastening ears. The two sealing bands are substantially in parallel with each other. The gap band is interconnected between the two sealing bands to form two opposing concave slots therebetween. The two fastening ears are respectively disposed at two opposite ends of either one of the two sealing bands.

Abstract: A clip includes a main body, a pair of locking members integrally formed at opposite ends of the main body, and a securing member secured onto one of the locking members. The one locking member includes an upper portion, a lower portion wider than the upper portion, and a step between the upper and lower portions. The securing member includes a handling portion and an engaging portion extending downwardly from the handling portion. A pair of flanges are formed on the engaging portion facing the main body and abutting the step. A clearance is defined between the flanges and the engaging portion receiving the upper portion. One of the engaging portion and the one locking member forms an engaging hole, and the other one forms a hook engaging into the engaging hole.

Abstract: A product package clip has tamper evident protection which is formed integrally with the clip. Breakage of a frangible occluding portion indicates that the integrity of the package has been jeopardized.

Abstract: Mounting device for connecting a fastening system selected from a number of available standard fastening systems to an automotive finishing element like e.g. a door inner panel, a dashboard, etc designed to be fixed to a vehicle body; the mounting device consists in: a standardized mounting tower provided integral with or fixable to said automotive finishing element; and in an intermediate, shallow mounting element designed to be interposed between the fastening system and the mounting tower, having first and second coupling means; said first coupling means being designed to mate with first coupling means of the fastening system designed to provide anchorage with the mounting tower; and said second coupling means being of the snap-on kind and being designed to mate with an attachment seat of prefixed shape for said shallow mounting element provided in said mounting tower, on a side thereof opposite to the automotive finishing element to be mounted.

Abstract: A fixing structure for fixing a thermal module on a chip of a printed circuit board is provided. The printed circuit board has a plurality of studs and a positioning post. The fixing structure includes a fixing board. The fixing board has a plurality of elastic strips, a plurality of screw holes and a spacing hole. The screw holes are on the elastic strips respectively, and the spacing hole is located close to one of the screw holes. The fixing board is positioned in the studs and the positioning post via the screw holes and the spacing hole, so that the fixing board can be fixed on the thermal module and chip.

Abstract: A heat dissipation device for dissipating heat from an electronic component (12) mounted on a printed circuit board (10) includes a retention module (30) resting on the printed circuit board, a heat sink (20) disposed on the retention module for contacting the electronic component, a clip (40) for securing the heat sink to the retention module, and a back plate unit mounted below the printed circuit board for engaging with the retention module and supporting the electronic component. The back plate unit includes a back plate (50), a gasket (62) engaging with the back plate, and a bracket (64) being sandwiched between the gasket and the back plate. The gasket has an annular top face contacting the printed circuit board, and a plurality of blocks (6202) contacting the back plate, whereby the gasket can provide a sufficient and uniform support to the electronic component.

Abstract: A universal coupler for coupling multiple orthopedic instruments is disclosed. The universal coupler includes a body having a boss and an internal bore, a locking shaft having a first portion and a second portion, a trigger including a trigger bore, and a connection portion. The trigger is operable between a first position and a second position, where in the first position the first portion and boss are misaligned and in the second position the first portion and the boss are aligned.

Abstract: The invention relates to a fixing device for the assembly and quick release of objects. The device includes an attaching element that can be fixed to one of the objects to be held together, and a holder that can be fixed to the other object and designed to hold the attaching element. The holder includes a plurality of separable parts that can be held closely together around the attaching element by a disengageable pre-tensioning device. The separable parts include of parts of the holder connected to each other by an elastically deformable mechanisms which stretch to in order to draw closer the parts located at a distance from each other, while the pre-tensioning device includes a link wound around the parts in order to keep them closed on the attaching element, at least one end of the link being fixed to a tensioning mechanism.

Abstract: A cushion clip includes a hollow cushioning portion, an engagement portion and a projection. The cushioning portion has a bottom wall portion and a side wall portion, and the side wall portion has cone-shaped outer and inner surfaces that are tapered from a proximal end toward a distal end thereof. The side wall portion has a top portion that is formed in the distal end thereof, and the top portion has an inner periphery radially inwardly protruding from the side wall portion and defining the central opening therein. The projection is cylindrically projected from the bottom wall portion toward the central opening of the cushioning portion, and has an upper end portion which diameter is larger than or equal to a diameter of the opening.

Abstract: An electronic apparatus includes a PCB with a heat generating electronic component disposed thereon, a heat sink, and a mounting device for mounting the heat sink onto the heat generating electronic component. The mounting device includes a mounting frame and a wire clip. The mounting frame surrounds the heat sink, and includes two first mounting arms and two second mounting arms disposed above the first mounting arms. The first mounting arms abut on the PCB. A pair of engaging wings are formed on the second mounting arms. The wire clip includes a pivot axle pivotably attached to the mounting frame and two resilient arms at opposite sides of the mounting frame. The resilient arms abut against the heat sink and engage with the engaging wings, thereby exerting a resilient force on the heat sink toward the heat generating electronic component.

Abstract: A device (22) is adapted to couple a finger follower (14) and a hydraulic lash adjuster (18) for use in a valve train (10) of an engine. The hydraulic lash adjuster (18) includes a plunger (34) having a longitudinal axis. The finger follower (14) includes a pocket (30) for receiving the plunger (34) and a protrusion (54) proximate the pocket (30). The device (22) includes a first portion (66) having an outer peripheral edge (70) and an inner peripheral edge (74), which defines a first aperture (82) configured to receive the plunger (34). The inner peripheral edge (74) of the first portion (66) includes at least one radially inwardly-projecting tang (86) configured to frictionally engage the plunger (34) to substantially axially secure the first portion (66) to the plunger (34). The device (22) also includes a second portion (78) coupled to the first portion (66) and extending substantially non-parallel to the first portion (66).

Abstract: An electronic device comprises a printed circuit board, an electronic component mounted on the printed circuit board, a heat dissipation device dissipating heat generated by the electronic component and a plurality of wires on the printed circuit board. The heat dissipation device comprises a heat sink and a pair of fasteners securing the heat sink to the printed circuit board. Each fastener comprises a frame body having a gap defined at a top portion thereof. The wires in a form of a wire harness extend through the gap of the frame body and into the frame body.

Abstract: An insulated clamp for securing a pipe to a conventional C-channel including first and second portions each having a recess associated therewith for receiving a portion of a pipe to be positioned therebetween, the first portion including a pair of flanges receivable within the C-channel, an expansion device positioned between the pair of flanges for moving the flanges into engagement with the C-channel, and a coupling mechanism for attaching the first and second portions to each other. The coupling mechanism is engageable with the expansion device to move the pair of flanges into their engaged position with the C-channel when the first and second clamp portions are attached to each other.

Abstract: A plug and a method for fixing at least two devices, includes a tension element, a pin, a lever element and a compression element. In one example, the tension element includes a tension stamp on a first end and a coupling member on a second end and a lever element includes a first sliding and a coupling element, with the pin coupling the lever element with the tension element. A compression element having an area-shaped contact that is capable of sliding onto the tension element until the area-shaped contact contacts the tension stamp. When the lever element is coupled to the tension element by a pin and is engaged by using a lever movement, a compression element is compressed by shortening a distance between the tension stamp and the lever element.

Abstract: A vertical support ‘O’ shaped fastener clip for temporarily securing vertical supplemental support cables to horizontal main support cables within elevated work decks which are temporarily installed upon structures such as a bridge to perform work on said structure. The vertical support ‘O’ shaped fastener clip which can be installed by tightening a single bolt, is comprised of a rod bent in a general shape similar to the letter ‘C’ with a threaded means at least at one end and a hollow tube attached to the other end, a bolt inserted through the hollow tube with a coupling nut threaded onto the end of the bolt. The hollow tube, bolt and coupling nut are aligned so that the coupling nut may be threaded onto the threaded end of the bent rod to close the open side of the ‘C’ shaped rod and form a closed ‘O’ shape.

Abstract: A method and apparatus for providing a mounting system for an elongated item such as a cable, tube or wire, or an assembly of multiple cables, tube and/or wires. The mounting system includes an apparatus for mounting to a supporting structure, and an apparatus for receiving the elongated item. Also included is an apparatus for receiving a tying member such as a cable tie. Also included is an apparatus for permitting the tying member to be cut to release the elongate item from the mount without damage to the elongate item.

Abstract: An electronics enclosure is provided. The electronics enclosure includes a heat dissipating body comprising: a heat conducting surface, a first flange adjacent to the heat conducting surface, and a first part of a latch mechanism adjacent to the heat conducting surface. The first part of the latch mechanism is adjacent an edge of the heat conducting surface opposite to the first flange, such that a portion of the heat conducting surface is between the first flange and the first part of the latch mechanism. The electronics enclosure also includes a plurality of electronic modules configured to mount to the heat dissipating body.

Abstract: A fastening device for fastening an accessory to a body part. The fastening device has a support element and a holding element. The support element is mounted to the body part from an exposed side and the holding element is mounted from a hidden side. The holding element has undercut elements via which it reaches from the hidden side through corresponding openings in the body part and reaches behind holding contours formed on the body part such that it is automatically fixed on the body part.

Abstract: A clip is provided which can be brought into engagement with a mounting hole with a relatively low insertion force and which can be pulled out of the mounting hole for reuse. This clip includes a flange portion 16 which is brought into abutment with a front surface of a mounting hole, a stem portion 24 which hangs downwards from a rear surface of the flange portion 16, a pair of elastic engagement pieces 26, 26 which are extended from a distal end portion of the stem portion 24 so as to expand obliquely upwards towards the flange portion 16, and an expansion restriction which brings the elastic engagement pieces 26 into engagement with the stem portion 24 or the flange portion 16 while permitting the elastic engagement pieces 26 to deflect further inwards when the elastic engagement pieces 26 deflect inwards with a given angle.

Abstract: To provide an attachment structure of a clip in which merely by adding a simple construction to a wall body of a mounting member, deformation of that portion around a retaining hole is eliminated, and the clip can be attached in a stable condition. In the attachment structure of the clip (1) which is attached by inserting part thereof into the retaining hole (11) formed in the wall body (10) of the mounting member and by retaining it therein, and in the attachment structure of the clip including elastic retaining pieces (4, 4) which are elastically deformed and inserted into the retaining hole (11) to be retained in the retaining hole (11), a first rib (12) is formed integrally on the wall body (10) and is disposed around the retaining hole (11) in the wall body (10), and a second rib (13) is further formed on the wall body (10) in surrounding relation to the periphery of the elastic retaining pieces (4, 4).

Abstract: A fastener for securing an airbag assembly in a motor vehicle includes first and second body components held one against another with a fastening tab of an airbag there between. A flexible collet from the body of the fastener is secured in a hole of a supporting component in a vehicle roof, and a pin pushed into the collet secures the installation. Tools and fastener structures for verification testing are disclosed.

Abstract: A fastener first member connects to a second member by a flexible tether. A third member having multiple deflectable wings slides onto the second member. A first member male pin extends through a third member aperture to engage second member biasing elements, joining the first, second and third members.

Abstract: A vehicle cladding mounting arrangement and method for securing a cladding panel to a vehicle body include a plastic body cladding having a main panel portion and an integrally formed cladding clip structure extending from the main panel portion and a plastic support bracket having a body portion for overlaying the main panel portion of the body cladding and an integrally formed bracket clip structure extending from the body portion. A vehicle body defines a mounting aperture. The integrally formed bracket clip structure is received in the mounting aperture. The integrally formed cladding clip structure is also received in the mounting aperture.

Abstract: A clip used to attach vertical and horizontal members of a fencing assembly is provided. The clip includes three resilient legs and enables fencing assemblies to be constructed on site without the use of screws or welding. Configurations for vertical and horizontal members of a fencing assembly that can be used in conjunction with the clip. Methods of assembly are provided as well.

Abstract: A fastener includes a fastener post, a sleeve, a nut and an elastic element. The fastener post includes a shaft, a tapered portion and a threaded portion. The sleeve includes a smooth portion and a clamp portion having a number of resilient strips. The nut is threaded onto the threaded portion. The elastic element is disposed around the sleeve and compressed between the nut and an ear of a heat sink to generate a resilient force. The resilient force moves the tapered portion of the fastener post into the sleeve such that the strips of the clamp portion of the sleeve are tilted outwardly to tightly abut against a bottom of a printed circuit board on which the heat sink is mounted.