Abstract: A fastener assembly having a bolt having a shaft with a plurality of spaced elongated closed end splines spaced from a like plurality of open ended splines. Each pair of splines are interconnected by a crossover slot of the same or greater depth than the closed end and open ended splines. The entry into the crossover slots is wide enough for ears of a retaining ring that is inserted onto the open ended splines of the bolt shaft to pass through the crossover slots and be forced out of a restricted width exit leading from the crossover slot to the closed end spline thereby trapping the ring on the bolt shaft with the ears reciprocating in the closed end splines.

Abstract: A front mounted retaining mechanism including a retention device and a captivatable device. The retention device has a head and a hollow shank. The head or the shank may include inwardly directed threads. The shank may include outwardly directed threads to facilitate mounting within a structure. The captivatable device includes a head and a shank, with the shank including a portion having a greater diameter than the remainder of the shank. That portion may be threads or a retainer ring. The captivatable device is threaded into the retention device in such a way as to allow its captivation therein. Then the first structure is aligned with a second structure into which the captivatable device is mounted.

Abstract: A captive fastener system having a fastener and a retention member is provided. The retention member includes a cylindrical body having a flange at one end thereof. Work piece retention members project outwardly of the body for securing the retention member in a bore of a work piece. A plurality of dimples project inwardly in the retention member, and are narrow in a circumferential direction and elongated in an axial direction of the body. The dimples frictionally engage a shank of the fastener, to hold the fastener in the retention member.

Abstract: A fastening position adjustable bolt is provided which includes a bolt body and a cylindrically shaped collar bolt. The bolt body has a head, a shank, and first male threads formed on a lower outer peripheral surface of the shank, and the collar bolt has second male threads formed on an upper outer peripheral surface thereof. An engaging portion engages the shank of the bolt body with the collar bolt. The engaging portion is disposed between the head of the bolt body and a position on the shank at which the first male threads are formed, and the engaging portion is adapted to release engagement between the collar bolt and the shank of the bolt body upon application of a torque having at least a predetermined value.

Abstract: A front mounted retaining mechanism including a retention device and a captivatable device. The retention device has a head and a hollow shank. The head or the shank may include inwardly directed threads. The shank may include outwardly directed threads to facilitate mounting within a structure. The captivatable device includes a head and a shank, with the shank including a portion having a greater diameter than the remainder of the shank. That portion may be threads or a retainer ring. The captivatable device is threaded into the retention device in such a way as to allow its captivation therein. Then the first structure is aligned with a second structure into which the captivatable device is mounted.

Abstract: A fastener assembly provides an adjustable restrained connection between a fastener and a retainer. The assembly connects to a support member and connects the support member to a component.

Abstract: A captive fastener for press-in installation in panels has a ferrule capable of being crimped to provide a positive engagement with a screw element of the captive fastener. The ferrule has a hardness gradient such that a penetration tip of the ferrule has a hardness greater that exceeds the hardness of the panel, and an upper rim of the ferrule is deformable to limit movement of the ferrule relative to the screw element by interference. Typically, the penetration tip has a hardness greater than about Rockwell B60 to permit the press-in installation to the panel.

Abstract: A low profile captive screw assembly used, for example, for attaching a protective cover, such that the captive screw assembly can be retracted to remove the protective cover without damaging the protective cover's seals. The low profile captive hardware assembly providing a standoff including a proximal end region, a distal end region opposite the proximal end region, and a central bore defining an interior surface. The interior surface including a threaded section. The low profile captive hardware assembly further provides a fastener including a head and a shaft, the shaft having a shank and a fastener threaded section. The fastener threaded section being interposed between the head and the shank such that when the fastener is positioned through the proximal end region of the standoff the fastener threaded section and the standoff threaded section are in engageable relation. A retaining clip positioned about the shank, the retaining clip capturing at least a portion of the fastener within the standoff.

Abstract: A captive screw including a screw and a ferrule is disclosed. One end of the ferrule is adapted for engagement to a hole in a panel to be secured by the captive screw. The screw has an annular flange that is captured within the bore of the ferrule. The screw has a shaft with a threaded portion. The threaded portion of the screw shaft can be made to extend from the ferrule to varying amounts as the screw is moved relative to the ferrule between extended and retracted positions. An optional spring may be provided in the ferrule to bias the screw toward the retracted position.

Abstract: Described is a spring-loaded, locking press pin with a pin, which extends axially through a guide sleeve and is connected at its upper end with a button, whereby a covered locking device is formed between the button and the guide sleeve, whereby the locking device consists of a ring recess, which is located in the button and is at least partly downwards open in axial direction, into which the guide sleeve engages spring-loaded with at least two locking teeth, opposite to each other and forming an axial slot between each other; that the retainer area for the pressure spring is located in a downwards open borehole in the guide sleeve and that this borehole is located in axial direction below the locking device at the press pin.

Abstract: The invention comprises a tolerance compensating mounting device comprising a bushing having an internal and external thread. The bushing is threaded into a part to be mounted to a surface. A bolt is then threaded into a bushing bore using the internal threads. The internal threads cause an interference fit between the bolt shank and the threads, temporarily preventing further insertion of the bolt. The bolt is then turned further, thereby turning the bushing and causing the bushing to unscrew from the part toward the mounting surface until the bushing seats on the mounting surface, thereby completely compensating for a tolerance gap. As the bolt is turned further, at a relatively low torque the sacrificial internal threads are stripped allowing the bolt to be fully torqued into the mounting surface hole, thereby simultaneously connecting the components with a properly torqued connection while compensating for a tolerance gap.

Abstract: Connecting arrangement for the detachable connection of two components having openings aligned toward one another, which includes a bolt having a shoulder part, and a locking part attached to an end of the bolt. A leaf-spring arrangement is adapted to engage the locking part when the bolt is pressed into the bush to a locking position, and a releasing part is movably coupled to the bolt between the shoulder part and the locking part. A vibration-damping ring includes of elastic material having an opening to receive the bush and a peripheral groove arranged concentrically to a ring axis adapted to receive an edge of the opening of the second component. The vibration-damping ring is adapted for coupling to the first component, and the leaf-spring arrangement is coupled to the vibration-damping ring. A stop is located on a side of the vibration-damping ring to be turned away from the components.

Abstract: A connection element for a bolt including a member for receiving the bolt (2) and including a bore (5) having a tapering region (7) adjoining a bore cylindrical receiving region (4) and tapering in a direction opposite a bolt insertion in direction (A); and a locking member supported in the bore (5) for forcelockingly engaging the bolt (2) and formed as a radially expandable annular member having an inner diameter (w), which is, at least partially, smaller than an outer diameter (d2) of the bolt (2), and an axial length corresponding to an axial length of the cylindrical receiving region (4).

Abstract: A narrow, pliable tether or strap attaches at opposite ends to a panel and a screw respectively in order to flexibly retain the screw to the panel away from the screw hole. A variety of attachment means between the tether and the screw may be employed. C-clip style jaws on the end of the tether may be employed to fit into a groove under the head of the screw as the preferred means of releasable screw attachment. Thus, the tether is free to rotate on the screw to avoid binding as the screw is turned. An adhesive, either first applied to the tether or the panel is employed to attach the stationary end of the tether to the panel.

Abstract: A honeycomb panel fixing device includes a honeycomb panel having a through-hole formed through a honeycomb core thereof in its thickness direction, a bushing inserted into the through-hole, and a fixing bolt for fixing the honeycomb panel to a target object by the bushing. The bushing includes a first cylindrical member inserted into the through-hole from the front of the honeycomb panel and having a first hole at a bottom thereof, the fixing bolt being inserted into the first hole, a second cylindrical member inserted into the through-hole from behind the honeycomb panel and having a second hole at a bottom thereof, the fixing bolt being inserted into the second hole, and a detach-prevention member fixed to the fixing bolt in the second cylindrical member and thus engaged with the second cylindrical member.

Abstract: A torque screw having a screw with a head and a threaded shaft, a knob having a central longitudinal axis coaxial with the screw and a one-directional ratchet disposed between the knob and the screw that engages to allow the screw to be disengaged in a counter-clockwise direction using the knob, and engages when rotated in a clockwise direction to a predetermined torque value. Once that predetermined torque value is reached, the ratchet is caused to slip such that the knob turns relatively freely with respect to the screw.

Abstract: The present invention is directed to a transconnector for coupling first and second spinal fixation rods or other elongate fixation elements. The transconnector includes a male member, a female member, and a locking member. The male member has a body with a linking element (such as a hook) associated with the lateral end for receiving one of the fixation elements, and a projection extending from the medial end. The female member has a body with a linking element associated with the lateral end for receiving the other fixation element, and a cavity with an opening on the medial end for receiving a portion of the male member projection. The locking member adjustably and rotatably secures the male member projection portion in the cavity in order to accommodate different orientations and separation distances between the first and second fixation elements.

Abstract: A self-lock and self-retained structural fastener assembly (10) is disclosed. The fastener assembly (10) comprises a plate member (12) having an opening (14) and a pair of receivers (16, 18). A retainer (20) that has a threaded opening (22), a pair of oppositely disposed spring fingers (24, 26) and a pair of oppositely disposed hooks (28, 30) is coupled to the plate member (12) by lockably inserting the hooks (28, 30) within the receivers (16, 18) of the plate member (12) to form a fastener housing (32). A stud (34) is rotatably positioned within the fastener housing (32). The stud (34) has a boss (36) and first and second threaded sections (38, 40) extending in opposite directions from the boss (36). The stud (34) has an uninstalled position wherein the first threaded section (38) is threadably engaged with the threaded opening (22) of the retainer (20).

Abstract: A threaded fastener retention device includes a housing having a retainer aperture formed therein and tab retainers adjacent the aperture. A resilient retainer is movably mounted in the aperture. The retainer includes a body having tabs for engaging the tab retainers and fastener gripping members for engaging the threads of the fastener and retaining the fastener in the housing.

Abstract: The retractable die clamp for a pellet mill includes a clamp segment having a generally C-shaped cross-section with radial extending flanges for wedging the die ring flange and mounting or quill flange of the pellet mill frame against one another, securing the ring to the frame. The clamp includes end bolts threaded into the mounting flange. A centrally located Acme fastener has an externally threaded sleeve and a bolt extends through the sleeve and is threaded into the mounting flange. The Acme fastener also includes an internally threaded nut restrained on the clamp for limited axial movement. The nut is also rotatable relative to the clamp to back the clamp radially away from the mounting flange to retract the clamp from the ring and mounting flanges. The Acme fastener also maintains the clamp attached to the frame by the bolted connection when the clamp is backed off the mounting and die ring flanges.

Abstract: An orthopedic fastener device is based on a strong central shaft that is threaded in a one end region and that, in one embodiment, presents a ramp surface in the other end region. The ramp end is inserted down-hole a bore in bone while an expandable first collet having bendable circumferential flukes is snug to the shaft, presenting a diameter less than the bore. Partial axial withdrawal of the shaft from the bore forces the first collet into and against the shaft's ramp region, causing the collet's flukes to splay and strongly compressively engage the bone, thereby permanently anchoring the fastener's first end. Soft tissue, normally a ligament, is slipped over the shaft region extending beyond the bone, and is optionally grasped by a toothed washer. Another, second, split collet--initially expanded in its internal diameter that has and presents threads--slides along the shaft so as to compress the ligament in position against the bone.

Abstract: A small, compact, self-contained fastener. The fastener has a cylindrical housing of which one of the embodiments has threads located on its exterior for releasably securing the housing to a one of the two objects being fastened. Inside the housing is located a cooperating member which extends in the axial direction of the housing. The cooperating member is movable between an engaged position in which the cooperating member engages the second object and a dis-engaged position in which the cooperating member does not engage the second object. The cooperating member has a cooperating member stop shoulder opposed to the housing stop shoulder and adapted to mate with the housing stop shoulder when the cooperating member is in the engaged position. When the cooperating member is in the engaged position, the cooperating member can retain the second object at a selected position with respect to the first object.

Abstract: A one-directional captive screw attachable to a panel that is hand tightenable, but requires a tool to loosen once hand tightened. The captive screw includes a screw having a head with a recess and a threaded portion, a knob having a central longitudinal axis coaxial with the screw, a one-directional ratchet between the knob and the screw. The ratchet engages to allow the screw to be tightened in a clockwise direction using the knob, and disengages when rotated in a counterclockwise direction, such that a tool is required to loosen the screw by use of the recess.

Abstract: An assembly unit includes an assembly element having a wall bounding a through hole thereof; and a counterpart back engagement part protruding radially inwardly from the wall and into the through hole. The assembly unit further includes a fastening element to be inserted into the through hole for assuming an initial position and a final assembly position therein, having a head for actuating a fastening of the fastening element; a shaft disposed adjacent the head for resting with radial play in the through hole, the shaft resting entirely in the through hole in the final assembly position of the fastening element; and a back engagement part disposed on the shaft and having a cross section in a plane perpendicular to a longitudinal axis of the shaft which protrudes beyond a cross section of the shaft in the plane. The shaft defines an undercut region between the head and the back engagement part.

Abstract: The present invention is to provide a dissipator mounting apparatus having a metal plate and a metal snap ring, where the two sides of the metal plate stretch upward and form an elastic tilt angle, and on one end of the metal plate bends downward and forms an opening to be firmly received in the barb of the ZIF socket, while the other end of the metal plate forms another hole for holding the snap ring whose rods stretch horizontally inward from the gap. Thus the CPU and the dissipator board can be tightly combined together with the help of the mounting apparatus.

Abstract: A sealing system for a cylindrical liquid floating roof storage tank includes a primary seal and a secondary seal mounted on a rim extending upwardly from a floating roof. The system for mounting the seals to the floating roof includes a bolt, a retainer for securing the primary seal to the rim, and a nut for securing the secondary seal to the rim, wherein installation or removal or the secondary seal does not compromise the primary seal connection.

Abstract: A one-directional captive screw attachable to a panel that is hand tightenable, but requires a tool to loosen once hand tightened. The captive screw includes a screw having a head with a recess and a threaded portion, a knob having a central longitudinal axis coaxial with the screw, a one-directional ratchet between the knob and the screw. The ratchet engages to allow the screw to be tightened in a clockwise direction using the knob, and disengages when rotated in a counterclockwise direction, such that a tool is required to loosen the screw by use of the recess.

Abstract: A quick die change capability is provided to a pellet mill by means of a fixture spider which can be attached to the pelleting die and to the rollers for a unitized roller/die cartridge. By employment of quick acting captive die clamps, as well as push-pull jacks, assembly and dismantling of the die/roller cartridge in the mill is simplified. Three axis adjustability of the fixture spider enhances ease of alignment.

Abstract: A sheet metal device for mounting a component on a circuit board is formed by stamping to defining a head portion and a base portion. The head portion is formed for insertion into a slot in a component such as a heat sink and the base portion is formed for insertion into a printed circuit board. The head portion has spade-form members which engage the walls of the slot and retain the head portion in the slot. The component is mounted on a printed circuit board by inserting the base portion into an aperture in the printed circuit board and soldering the base portion to the reverse surface of the board.

Abstract: A fully retractable captive screw that is low profile, having a snap-in feature allowing for installation of the device into a hole on a panel, by hand, without the need for separate tools. The fully retractable captive screw has a screw, a knob with a screwdriver recess on top, a cylindrical ferrule with attached snap-in mechanism, and a spring that causes the screw to retract into the ferrule when the screw is not engaged.

Abstract: A mechanical rotary coupler for first and second coral shafts having slotted ends proximate one another, the coupler being formed of an elongated blade of resilient material longitudinally slit and folded on itself transverse to the slit to provide first and second resilient V-shaped strips connected by bridging portions at the ends of the blade, the strips respectively being adapted to engage the slots in the ends of the first and second shafts at regions on the strips spaced from the bridging portions.

Abstract: A lug nut retainer that holds a lug nut in position proximate to a wheel lug hole to accept a stud extended through the wheel lug hole and for resiliently urges the lug nut onto the stud while allowing the lug nut to rotate to screw onto and off the stud. A resilient retaining clip is mounted onto the wheel to hold the lug nut in position near the wheel lug hole and to resiliently urge the lug nut towards the wheel lug hole. The retaining clip is fastened to the wheel lug hole by inserting an arm of the clip through two holes provided in the wheel. As an additional feature, a limit clip is provided that limits the motion of the retaining clip to decrease the likelihood that the retaining clip may be bent or damaged while allowing the retaining clip to be positioned on a nut. The lug nut is provided with a socket stop ring around which the retaining clip is positioned. The stop ring keeps the socket from rubbing against the retaining clip.

Abstract: A system for securing a threaded fastener prepositioned in a hole in a ski binding assembly that is subsequently to be connected to a ski. The system comprises an elastic fastener retainer held within the hole that causes the lower portion of the fastener to retractably extend from the hole until a force is applied to the lower end thereof. When such a force is applied, the elastic fastener retainer is temporarily deformed, accommodating retraction of the lower portion within the hole. When the force is removed, the fastener retainer reassumes its former shape, causing the lower portion to again emerge from the hole. The system allows the assembly to be initially placed anywhere on a ski surface, and thereafter, to be moved to the location of the ski's screw holes where the assembly is to be installed.

Abstract: A lug nut retainer that holds a lug nut in position proximate to a wheel lug hole to accept a stud extended through the wheel lug hole and for resiliently urges the lug nut onto the stud while allowing the lug nut to rotate to screw onto and off of the stud. A resilient retaining clip is mounted onto the wheel to hold the lug nut in position near the wheel lug hole and to resiliently urge the lug nut towards the wheel lug hole. The retaining clip is fastened to the wheel lug hole by inserting an arm of the clip through two holes provided in the wheel. As an additional feature, a limit clip is provided that limits the motion of the retaining clip to decrease the likelihood that the retaining clip may be bent or damaged while allowing the retaining clip to be positioned on a nut. The lug nut is provided with a socket stop ring around which the retaining clip is positioned. The stop ring keeps the socket from rubbing against the retaining clip.

Abstract: A universal connector for linking and retaining first and second members to one another, wherein the first member has a tapered end portion for insertion into the connector, the first member having a reduced cross sectional portion forming an annular groove adjacent but spaced from the tapered end portion, wherein the connector has a main body with one end portion having an aperture for receiving the second member in retaining engagement, an opposite end portion having an aperture for receiving the first member in retaining engagement, and a bridging portion interconnecting the one end portion and the opposite end portions together.

Abstract: A low conductivity mounting stud for attaching an electronic component to a base structure such as a heat sink eliminates the need for several insulating washers and other insulators around the shaft of the mounting stud. The mounting stud may be composed of ceramic material such as partially stabilized zirconia. The mounting stud is secured with a press-on fastener such as a "Tinnerman nut".

Abstract: A fastener-receiving member is disclosed that can be used with either a blind hole or a hollow wall. In addition, the length of the fastener-receiving member can be adjusted to be accommodated within various thicknesses of walls. The nut portion of the fastener-receiving member is configured so that it has ridges at its outer periphery that will engage with the surface of a hole regardless of the quality of the drilled hole. A wing-like locking section will expand to insure an adequate grip between the wall and the member. In addition, an insertion tool is disclosed that aids an operator in inserting the fastener-receiving member into a hole.

Abstract: A lug nut retainer that holds a lug nut in position proximate to a wheel lug hole to accept a stud extended through the wheel lug hole and for resiliently urges the lug onto the stud while allowing the lug nut to rotate to screw onto and off of the stud. A resilient retaining clip is mounted onto the wheel to hold the lug nut in position near the wheel lug hole and to resiliently urge the lug nut towards the wheel lug hole. The retaining clip is fastened to the wheel lug hole by inserting an arm of the clip through two holes provided in the wheel. As an additional feature, a limit clip is provided that limits the motion of the retaining clip to decrease the likelihood that the retaining clip may be bent or damaged while allowing the retaining clip to be positioned on a nut. The lug nut is provided with a socket stop ring around which the retaining clip is positioned. The stop ring keeps the socket from rubbing against the retaining clip.

Abstract: A hose coupling or pipe connection (10) has detachable parts (20, 22) which are releasably locked together by two U-shaped cotter pins or locking staples (18) in accordance with the invention, the cotter pins or locking staples being of laminated form and comprising two or more joined-together leaves or plies (26, 28).

Abstract: A retainer device is disclosed wherein two retainer plates engage from opposed sides an annular groove formed in an end section of a spindle on which a wheel, specifically a roller skate wheel, is mounted in a freely rotatable manner.

Abstract: A hold out spring is provided on a threaded bolt. The bolt is adapted to be inserted through a hole in a panel. The hold out spring is inserted into a bore in the bolt, riding in spaced diametrically opposed internal grooves therein, the hold out spring extending out of a slot in the bolt. A washer having inwardly extending tabs is now installed on the shank of the bolt, the tabs riding in grooves extending along the outer body of the bolt and stopped in their downward movement by engagement with a stop ring mounted in a groove adjacent the nose of the bolt.

Abstract: A hinge mounting plate on which a hinge arm is fastenable is adjustable in one direction and fastenable to a furniture part, for example a furniture side wall, by means of fastening screws extending through elongated holes in the mounting plate. In each elongated hole is provided two flaps projecting from the rim of the hole having free front faces pivotally holding the respective fastening screw. The fastening screws have countersunk heads, and when the fastening screws are inserted the countersunk heads press the flaps away from the screw cores.

Abstract: Structure for screwing on sheet metal an object having a fitting hole comprises sheet metal having a prepared hole formed therein in the shape of a saucer and also having a saucer-shaped lip which has a thickness equal to the thickness of the sheet metal and defines the prepared hole, and a screw composed of a screwhead, a shank depending from the screwhead, external threads formed around the shank and a substantially conical tip. The screw is passed through the fitting hole in the object and driven into the prepared hole in the sheet metal while catching the leading end of the saucer-shaped lip between the adjacent external threads.

Abstract: A screw retainer for retaining a screw in a first member which is to be attached to a second member, including a bore in the first member having longitudinally spaced elastic projections extending into the path of the screw head to capturing the screw head to retain the screw in the bore before the first and second members are attached.

Abstract: A captive panel fastener includes three parts, a screw, a tapered bushing, and a slotted expandable sleeve. The bushing fits closely over the shank of the screw, and has an outwardly extending shoulder or flange at its lower end away from the head of the screw, to retain the expandable sleeve in the expanded condition. The slotted sleeve has a cylindrical upper flange which is generally co-extensive with the head of the screw, and has a lower flange which in the initial or relaxed condition is smaller than the panel hole through which the captive fastener is to be secured. Following insertion of the shank of the screw and the unstressed slotted sleeve into a hole in a panel where the fastener is to be secured, further pressure on the head of the fastener forces the sleeve into the bushing, expanding the lower end of the sleeve, so that its lower slotted flange grips around the lower edge of the panel.

Abstract: The invention comprises the essential operating mechanism for a vertical latching assembly for a closure. It provides adjustment screws, accessibly disposed, externally of the closure (door), for adjusting the effective lengths of the elongate, latch bolt-actuating elements. A centercase, which is mounted externally of the door, has attachment blocks slidably coupled thereto. The blocks carry limbs, of the top and bottom bolt-actuating elements, or rod connectors, and the adjustment screws are threadedly engaged with the limbs for moving them, selectively and adjustably, axially of the centercase.

Abstract: A retainer assembly for securing a sheet-like material to a wall comprising an elongated stud having an inner end welded to the wall and extending outwardly therefrom so as to be perpendicular to the wall, the stud having a pointed outer end whereby the sheet-like material can be impaled thereon and positioned so as to be adjacent the wall, the stud being provided with a longitudinal slit extending from the outer pointed end to a location adjacent the inner end so as to form a pair of longitudinal fingers, the stud being bent adjacent the inner end whereby the fingers are laterally offset from each other, the fingers being provided with alternate outwardly extending teeth and recessed notches along the longitudinal sides of the fingers opposite from the slit, and a retainer plate provided with a central opening therein such that the pointed end of the stud can be inserted through the opening to permit the plate to be slidably received on the stud, the opening in the plate being approximately equal to the dist

Abstract: A retaining device has a central body adapted to be radially inserted into a bore or recess of a machine member to be retained. Lateral legs of the device are integral with the body and intended for at least partial engagement with the machine member to be retained. The body consists of a tube. The legs extend from one end of the tube on opposite sides.

Abstract: The push fastener of this invention includes a plastic receptacle held by a metal member to a workpiece, the receptacle having four leaf springs for improved alignment and load carrying ability. Two inclined inner surfaces are provided on the receptacle, one for engagement by the end of the plunger and the other for engagement by the release collar. A lip at the ends of the leaf springs is received within the interior of a washer on the end of the plunger when the fastener is secured, resisting outward displacement of the ends of the leaf springs.

Abstract: This invention provides a shear resistant panel fastener that includes a bolt having a head and a shank with a first relatively large diameter portion adjacent the head and a second smaller diameter threaded portion, a sleeve on the second portion of the shank, a collar around the sleeve and movable to a position around the first portion of the shank, the collar including a means for attachment to a workpiece, and a retainer means for prohibiting movement of the collar off of the sleeve in one direction. The smaller outer end of the shank is adapted to enter a clearance opening in a part for engagement with a floating nut at the opposite end of the opening, while the larger portion of the shank is drawn into the opening and the fastener is tightened. The smaller portion of the shank permits the fastener to be mated when the openings are misaligned while the larger portion of the shank provides shear resistance when the fastener is mated.