Abstract: An electrical box locating device is formed from a single piece of metallic material. The locating device has a forwardly extending fastening portion which is functionally adapted to be received within a threaded receptacle mounting hole of a typical electrical box. Rearwardly of the fastening portion is a drive portion which allows the device to be driven into the mounting hole and securely held within it. Rearwardly of the drive portion of the device is a drywall penetrating portion which extends outwardly of the electrical box and which is functionally adapted to penetrate and extend through a sheet of drywall when such is placed over the electrical box. The fastening portion, the drive portion and the penetrating portion of the device are made from a single piece of material and integrally formed in the preferred embodiment of the invention.

Abstract: An arrangement for fastening of an assembly part on a carrier part includes at least one fastening screw, a sleeve, and a flexible assembly ring whose inner diameter is smaller than an outer diameter of a sleeve head flange and foot flange and which is arranged between the head flange and foot flange on the sleeve. The assembly part includes a through-bore in the assembly part whose inner diameter is at lest as large as the outer diameter of the foot flange, into which the sleeve is inserted. The lower side of the head flange is indirectly or directly supported on the upper edge region of the through-bore. The inner diameter of the through-bore is dimensioned such that the assembly ring is radially pressed together therein and by way of this clamped in and/or the through-bore comprises an undercut with an inner diameter so that the assembly ring under radial compression and subsequent expansion is pushed through the undercut and by which the assembly ring is retained in the through-bore.

Abstract: A captive screw attachable an upper panel, for attaching the upper panel to a lower surface, the lower surface having a threaded hole, the captive screw having a screw, a ferrule that attaches to the upper panel, a thin-walled, cylindrical hollow knob and protrusions integral to the outer perimeter of the head portion of the screw to rigidly secure the perimeter of the head of the screw to the inner surface of the knob, the protrusions providing a press-fit of the screw to the inner surface of the knob where the screw is pressed into the knob from the underside of the knob.

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: Locking arrangement for a movable vehicle body part. For adjusting an engine hood relative to the stationary vehicle body parts, it is known from prior art to fasten a lock top part by means of washers to the engine hood in such a manner that, when the engine hood is closed and therefore in the case of a connection of the lock top part with the lock bottom part, a precise fit of the engine hood is achieved. According to the invention, the catch bow is held on the assigned vehicle body part by means of a continuous linear adjusting device.

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: In a fastener comprising a screw with a shaft having a thread portion at one end and a head at the other end and an axially extending sleeve structure provided with an internal thread at its end adjacent the screw head in which the screw is captured wherein the screw shaft has a reduced diameter area between the screw head and the screw thread, which is disposed within the sleeve thread area after the screw has been threaded through the sleeve thread, the adjacent end areas of the sleeve thread and the screw thread are made inoperative by cold deformation so that the screw is captured in the sleeve structure.

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 mounting assembly includes a metallic base member, such as a wall of an enclosure. A threaded stud is fused to the base member. A threaded collar engages the threaded stud and provides a threaded recess for receiving a mounting fastener. The mounting assembly is well-suited for supporting electronic items within an enclosure in a weather-tight or water-proof manner because the mounting assembly requires no seals for an environmental barrier.

Abstract: A stud comprises a head and a stem with a threaded end length and a length having an axial knurling proximate to the head and adapted to be driven with radial interference into an axial bore of a radial flange portion fast for rotation with the hub of a motor vehicle wheel. The stud comprises at least one knurled surface having an area other than zero in a projection on a plane perpendicular to the longitudinal axis of the stud. The knurled surface is adapted to co-operate with the radial flange portion for preventing rotation of the stud.

Abstract: A tubular stem (14) at one end of a nut mount (10) is inserted into an opening (O) in a wall (W) and is expanded to connect it to the wall (W). An annular collar or space (16) contacts the wall (W) where it immediately surrounds the opening (O). A clip-on nut (12) is clipped onto a nut receptor (18) that is endwise outwardly of the collar (16). A pushing movement on the clip-on nut (12) moves catch tabs (54, 56) past diametrically opposite edge portions (30, 32) of the nut receptor (18), placing them into positions below the edge portions (30, 32) of the nut receptor (18). When the catches (54, 56) are so positioned, they hold the clip-on nut (12) on the nut receptor (18). The clip-on nut (12) may be a sealed nut. If so, catch tabs (54, 56) are positioned so that when they engage underneath portions of the edge portions (30, 32) of the nut receptor, a seal ring at the base of the clip-on nut (12) is compressed.

Abstract: A fastening structure capable of preventing deterioration in the flatness of a surface of a flange portion (2) when a serration (7) of a bolt (5) is press-fit into the flange portion (2). In this fastening structure, one portion in an axial direction of an outer peripheral surface (6) of the bolt (5) is provided with the serration (7). The bolt (5) is press-fit into a bolthole (3) formed through the flange portion (2) of a mounting member (1). The serration (7) is located apart from respective end surfaces (2A), 2B) of the flange portion (2) by first and second distances (D, C), and the first and second distances (D, C) each exceed 13% of the thickness (A) of the flange portion (2). With this arrangement, the serration (7) presses a bolthole inner peripheral surface (13) only in the region located far from both end surfaces (2A and 2B) of the flange portion (2).

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 present invention discloses a non-piercing, non-shearing fastener, die button, fastener and panel assembly and method for installing the fastener. The fastener has a head with a flange and barrel which define a retention area and barrel cavity. The retention area receives a portion of the panel and the barrel cavity receives a portion of the panel to lock panel material into the retention area and wrap panel material around the barrel.

Abstract: A cover plate for an instrument panel carrying a captured fastener adapted to be assembled to an underlying instrument panel support structure by a closely overlying and sliding motion of the cover plate relative to the support structure. The cover plate has a thickened boss portion formed with an internally threaded passage. The fastener has an elongated shank extending axially to the passage and includes an unthreaded mid-portion and a threaded outer end portion, terminating in a tip. A pre-assembly position of the fastener is attained by rotation of the fastener with respect to the boss's threaded portion just sufficent for supporting the fastener but not enough to advance the tip from within the boss thereby preventing the tip from projecting out from the surface of the cover plate.

Abstract: An annular recess is formed in an inner periphery defining a bolt shank bore and has fitted therein an annular elastic member having elasticity radially thereof and having an inside diameter smaller than the outside diameter of the shank of a bolt. The shank bore has at an intermediate part thereof a stepped portion so as to give an increased diameter to a bore portion from the intermediate part to one end of the bore, and a hollow cylindrical member for preventing the elastic member from slipping out is inserted in the shank bore from the bore end so as to form a clearance between the stepped portion and the preventing member, whereby the annular recess is formed.

Abstract: A spud assembly is provided for use in a pneumatically actuated brake, clutch or other friction assembly. The spud assembly includes a spud and a washer that are configured to reduce axial and rotational movement of the spud within the friction assembly. The spud includes a body portion that is centered about a first axis and extends through an aperture in a holding plate of the friction assembly. The body portion includes an outer wall that defines a pair of diametrically opposed flats. The flats engage a corresponding pair of flats in the washer which is fixed against rotation relative to the friction assembly holding plate. The spud also includes a holding member, such as a circular flange, that extends radially outwardly from the body portion of the spud. The holding member abuts one side of the holding plate to reduce axial movement of the spud.

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 clamping screw (1) comprises a screw shaft (3) with a thread and a hammer-shaped screw head (2) which can be inserted in a positive-locking manner into a T groove (4) of a construction component (25). In the mounted position, the screw head (2) extends transverse to a longitudinal slot (5) of the T groove (4) and engages with clamping portions (7) support legs (6) extending on either side of the longitudinal a slot (5). The clamping portions comprise respectively a leading edge (12) and a blocking edge (13) resting at one of the groove walls (14). The blocking edge (13) projects from a lateral surface which is part of the longitudinal side (11) and a connecting line (15) between the leading edge (12) and the blocking edge (13) of the same longitudinal side (11) intercepts a transverse axis (10) of the screw head (2) at an angle which deviates from 90.degree..

Abstract: A captive fastener assembly for non-releasable securement to a subassembly formed at least in part of a soft, ductile material and for operatively connecting such subassemblies to other members. A retainer cup has a set of projecting undercuts on its sidewall for grasping the ductile material of the subassembly through welding to prevent the captive fastener from being pulled out or away from the subassembly. A fastener member is journalled through an opening in the retainer cup to secure the subassembly to the other member, thereby forming an integral structure that resists loosening or falling apart. The captive fasteners of the present invention are simple and economical to manufacture and greatly increase the structural integrity and safety of structures that utilize them.

Abstract: A captive panel fastener includes a retractable screw having a thermal plastic cap molded around its head. The cap includes slotted skirt with resilient fingers. When the retractable screw is forced downward through the bore of the ferrule having divergent sides, the fingers of the cap spread apart by the wedging action against the outside surface of the ferrule, thus providing a biasing force urging the screw in an upward retracted direction. The ends of the cap fingers include inward facing ribs which fall into a circumferential groove around the outside surface of the ferrule adjacent its bottom end. The groove may further include plurality of radial extending teeth which engage inward facing protrusions located on the fingertip ribs to resist unwanted loosening of the screw.

Abstract: A tubular stem (16) of a bolt mount (12) is coldexpanded into an opening (70) in a wall (72). A second wall (76) is placed against the first wall (72), with an opening (70) in it in alignment with the center opening (32) in the tubular stem (16). An elongated shank portion (88) of a tubular nut (86) is inserted through the opening (70) and then through a center opening (32) in the tubular stem (16), and into an annular space (58) defined by and between a tubular sidewall (48) of a bolt-element retainer (14) and a bolt-element (54). The tubular bolt (86) has internal threads (90) that mesh with and thread onto external threads (56) on the bolt-element (54). The tubular nut (86) is rotated until a head (84) on its end is in tight clamping engagement with the portion of the second wall (76) that surrounds the opening in the second wall. Tightening of the tubular nut (86) draws the bolt-element retainer (14) and the tubular nut (86) together, firmly connecting the second wall (76) to the first wall (72).

Abstract: A self aligning connector to engage with a tapered surface of a body to be connected, having a head with a tapered surface capable of engaging the tapered surface of the body to be connected to the receiving body, a shaft portion having threads capable of threadingly engaging threads of the receiving body, a retainer sized and shaped to engage the shaft portion and to seat against a retaining surface of the body to be connected, and a substantially conical spring having an end portion engaging the head and/or shaft portion and another end engaging a surface of the body to be connected opposing the retaining surface and biasing the head and/or shaft portion away from the receiving body.

Abstract: A countersunk hole reinforcing structure, which includes a plate member having a countersunk hole formed of a circular recess and a screw hole at the center of the circular recess for the installation of a screw bolt to fix the plate member to an object below, wherein the plate member has a plurality of reinforcing ribs raised from the circular recess and equiangularly spaced around the screw hole to reinforce the structural strength of the wall body of the circular recess.

Abstract: A fastener has a screw with an anchor located thereon, the anchor being spaced apart from the head. The anchor has a cut-away portion with a leading edge and a trailing edge of the cut-away portion angling downward. The leading edge angles downward a further distance than the trailing edge. The anchor is spaced apart from the head by a distance corresponding to a thickness of a layer of material to be affixed to a support by an adjustable distance. The layer of material has a small opening therein to accommodate the screw. When the screw is inserted through the opening and into the support, the anchor turns through the opening, even though the opening is smaller than the anchor so that the material is located between the anchor and the head. The screw can then be turned further into the support or further out of the support to adjust the distance between the material and the support in order to align the material as desired.

Abstract: A jacking screw for attaching a first panel to a second panel which provides a force in the axial direction of the screw when the screw rotates in a first direction to jack the first panel down to the second panel and which provides a force in the axial direction of the screw with respect to the panel when the screw is rotated in the opposite direction to pry the first panel away from the second panel. The jacking screw has a screw, a ferrule surrounding and coaxial to the screw shaft, and a knob. The first end of the ferrule is attachable to a panel and the second end has an outwardly protruding annular step. The knob is attached to the head of the screw and Ahas a downwardly extending generally cylindrical portion, coaxial to the screw shaft and the ferrule and the downwardly extending cylindrical portion secures the knob to the ferrule allowing for rotational movement of the knob with respect to the ferrule but allowing substantially no axial movement of the knob with respect to the ferrule.

Abstract: A fastener for simultaneously mounting adjacently disposed building entrance protectors (BEP) units to a mounting panel and for grounding the units to each other. The fastener includes a tapered and preferably threaded shaft for facilitating securement of the fastener into the mounting panel, such as by screwing or the like. A lip is integrally formed on the shaft and a clamping element, such as a nut, is movably engaged with an untapered opposite end of the shaft so that when rotated about the shaft opposite end, the nut is translated into close proximity with the lip. When mounting tabs from adjacent BEP units are placed between the nut and lip, and the nut is then rotatably tightened, the mounting tabs are placed in electrical contact to provide a grounding connection between the BEPs while securing the adjacent BEPs to the mounting panel.

Abstract: A fastener, for example a nut element, for attachment to a plate-like component with an end face of the fastener having a recess within a raised contact surface and a plurality of projections and undercuts are provided in a sidewall of the recess. The base surface of the recess extends up to the bore of the fastener without the presence of a pilot portion and a plurality of recesses are provided in the contact surface for resisting rotation. The die button which serves for the attachment of the fastener to a plate-like component has a hole-forming punch projection which has a plurality of noses distributed around the periphery in the region of the transition to the planar surface of the die button. On attachment of the hollow element to a plate-like component in a press, the sheet metal part is perforated by a hole punch and is molded in form-locked manner by the die button, in particular by its hole-forming punch projection, into the recess of the hollow element.

Abstract: A jack-out screw for attaching a first panel to a second panel when rotating the screw in a first direction and which provides a force in the axial direction of the screw with respect to the panel when the screw is rotated in the opposite direction to pry the first panel away from the second panel during rotation, including a screw and a housing where the upper surface of the housing is mountable flush with the panel on which the jacking screw is installed and an interface for securing the screw head to the housing allows for rotational movement of the screw along its axis, but does not allow for substantial axial movement of the screw with respect to the housing.

Abstract: A blind setting rivet assembly capable of permanently fastening one or more sheet metal work pieces or the like together is disclosed. The rivet assembly may be self tapping and may also provide a hollow cylindrical threaded bolt head onto which a nut may be affixed to provide a means to removably attach other work pieces, components or the like. The rivet assembly comprises a rivet body having a hollow tubular sleeve and an enlarged flattened head. The rivet body surrounds a mandrel which may have a weakened area of reduced diameter to allow detachment of the mandrel shaft following application of sufficient axial force to the shank. This application of force sets the rivet by causing a tapered shoulder section of the mandrel to deform the rivet sleeve. The mandrel shank may be terminated in a screw tip. This screw tip punctures, spreads, and self-taps an aperture in the work pieces through which the rivet sleeve passes.

Abstract: An assembly arrangement includes: an assembly element defining a mounting hole therein; and a cuff inserted into the mounting hole in a vibration-damping manner, the cuff being made of an elastic rubber material and defining a through hole therein. The cuff further includes a cuff neck resting in the mounting hole and defining, over an entire length thereof, an outer circumferential surface extending essentially along a longitudinal axis of the cuff, and a fastening region having an inner wall which protrudes radially inwardly into the through hole, the fastening region extending over a portion of a circumference of the through hole.

Abstract: An improved self-riveting fastening element for permanent attachment to a metal panel within a panel opening by a die member having an annular concave die cavity. The fastening element includes a tubular riveting portion and a radial flange portion and a fastening portion. The internal and external surfaces of the tubular riveting portion are relatively uniformly inclined toward the radial flange portion such that the thickness of the tubular riveting portion at the free end is less than the thickness adjacent the radial flange portion. In the preferred embodiment, the internal surface of the tubular riveting portion is cylindrical and the external surface is slightly conical tapering inwardly toward the free end to reduce the force required to radially deform the free end of the tubular portion radially outwardly.

Abstract: A captive screw attachable an upper panel, for attaching the upper panel to a lower surface, the lower surface having a threaded hole, the captive screw having a screw, a ferrule that attaches to the upper panel, a thin-walled, cylindrical hollow knob and protrusions integral to the outer perimeter of the head portion of the screw to rigidly secure the perimeter of the head of the screw to the inner surface of the knob, the protrusions providing a press-fit of the screw to the inner surface of the knob where the screw is pressed into the knob from the underside of the knob.

Abstract: An anchor fitting assembly for securing objects on an elongated track. The track is of the type commonly used in aircraft and in various vehicles to secure seats, wheelchairs, cargo and other objects. The track has an elongated groove which has a bell-shaped profile. The top of the groove is open and has a series of opposed tabs and semicircular faces. There are many styles of fittings which are placed in such tracks and secured to the tracks. The anchor fitting assembly of the present invention has a securable fitting which has a flared based held beneath the opposed tabs of the groove. The fitting is prevented from sliding along the track by a pair of buttons which are inserted downwardly into two opposed semicircular openings adjacent the securable fitting. When an object is screwed onto the securable fitting it holds down the buttons preventing them from coming out of the semicircular openings.

Abstract: A wire rope clip comprising a two-piece bolt and saddle. The clip comprises first and second bolts, each having a head, a threaded end, and a plurality of splines fashioned proximate the head. The clip further comprises first and second saddles, each having a base, a first orifice and a second orifice. A first nut engages the threaded end of the first bolt and a second nut engages the threaded end of the second bolt.

Abstract: High pressure jackscrew connectors for removably attaching a first component to a second component having an internally threaded member. One preferred embodiment described includes a panel mount member which is attached to the first component to be joined. When attached to the first component, the panel mount member retains an internally threaded ejector member. A pressure inserter member having a longitudinally extending externally threaded portion engages with the internal threads of the ejector member and the internal threaded member of the second component to pull the ejector member towards the pressure inserter member and push the first component towards the second component upon rotation of the pressure inserter member.

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: A self-tapping, blind setting bolt rivet assembly capable of permanently fastening one or more sheet metal work pieces or the like together while also providing a hollow cylindrical threaded bolt head onto which a nut may be affixed to a means to removably attach other work pieces, components or the like. The rivet assembly comprises a rivet body having a hollow tubular sleeve and a threaded stud separated by an enlarged flattened head. The rivet body surrounds a mandrel comprising a shank which is terminated in a screw tip. This screw tip punctures, spreads, and self-taps an aperture in the work pieces through which the rivet sleeve passes. The mandrel's shank may have a weakened area of reduced diameter adjacent to the screw tip which allows detachment of shaft following application of sufficient axial force to the shank. This application of force sets the rivet by causing a tapered shoulder section of the mandrel to deform the rivet sleeve.

Abstract: A novel clinch-type fastener member is engaged through first and second workpieces to form a mechanically locked joint which is highly resistant to vibrational loosening. The fastener member has a first portion and a second portion defined by a shank portion which extends therefrom. The first portion has a protuberance, formed from a ring, thereon which extends outwardly therefrom. The shank portion has a projection, formed from a ring, spaced a predetermined distance from the first portion to define a retaining groove. To engage the fastener member with the workpieces, the fastener member is rotated into engagement therewith. The protuberance on the first portion engages a top surface of the first workpiece and rotational and compressive forces are applied to the fastener member thereby causing the protuberance to deform the first workpiece material to cause the material to flow into the retaining groove provided of the fastener member.

Abstract: A self contained captive bolt assembly which is riveted onto a plate for purposes of mounting the plate onto structure. The assembly forms a high strength joint with the use of common close tolerance holes through the plates being joined and is designed to mate with a common plate nut. A receptacle houses the assembly and traps the bolt between the bolt head and a retainer attached to the bolt. The captive bolt is provided with a spring between the retainer and an end cap which acts to hold the bolt in a retracted position prior to fastening.

Abstract: A fastener for attaching a first object to the outside of a second object having a hole and a normally inaccessible inner surface. The fastener generally comprises a head portion, a resilient washer disposed in a stepped or double recess in the head portion, and a fastening section connected to the head portion. The resilient washer has a maximum diameter that is substantially larger than the hole, and a contoured or tapered outer surface adapted to engage, be compressed in, and slide through the hole in only one direction. When the fastener is pressed through the hole and the head portion emerges on the other side, the resilient washer springs back to its decompressed size and securely retains the fastener in the second object. Additionally, the washer has a flange that helps retain the washer in the head portion and acts to evenly distribute on the washer any forces exerted to remove a fully inserted fastener.

Abstract: An improved mounting structure includes a soft mounting sleeve having a locking hole at a central position for fitting into a through hole of a mount, and a screw fitted with a washer. In assembly, the screw is inserted into the mounting sleeve fitted into the mount before driven into a frame structure. When the screw is driven into the top side of the mount, the bottom side of the mounting sleeve will elevate with the turning of the screw to impose a pressure on the screw threads, thus preventing the screw from being driven further and achieving a good mounting effect. This arrangement also prevents the screw from driving unduly deep into the frame structure due to excessive torsional force to prevent any possible damage to the frame structure or the screw threads.

Abstract: In a screw securing device for a screw (1) by means of which a first component (2a) and a second component (2b) are clamped together, a bushing (5a, 5b), includes a cylinder (5a) and a base (5b) which contains a bore, the bushing being arranged in a first bore (3a) of the first component (2a). The first bore (3a) opens into a smaller, second bore (3b) of the first component (2a), and said second bore (3b) is provided with a left-handed thread (8) in which there is screwed a tubular extension (5c) which is arranged coaxially with the bore in the base (5b). The screw (1) is screwed, through the bushing (5a, 5b) and the tubular extension (5c), into the second component (2b) by means of its right-handed thread (7). A cap (6a), having an insert (6b) which is connected to the screw head in a positively locking manner, is fastened on the bushing (5a, 5b) by a welding bead (4).

Abstract: Arrangement for fastening a hollow railing (10) to the front (24) of a drawer. A blind bore (26) is created on the back of the drawer front. The threaded shaft (20) of a fastener having a fastening head (22) of larger diameter, which can be inserted into the bore, is screwed into the front end of the railing. The fastening head tapers from its end at the railing towards its free end such that its upper generatrix is parallel over most of its length with the railing, and its lower generatrix slopes downwardly from the free end of the fastening head over most of its length. Near the free end of the fastening head at least one knife-edged projection reaching radially upwardly is provided and its cutting edge runs more or less circumferentially.

Abstract: A hinge fastening structure and method of creating a hinge to box-section pillar joint which includes a fastener extending from the pillar outer panel to the pillar inner panel wherein the fastener includes first and second threaded portions of substantially identical pitch but different diameters adjacent to the head and the tip thereof respectively. The fastening structure and method may also be applicable for attaching other forms of hardware to box-section structures.

Abstract: A fastener 1 includes a stud 2 and a nut 3. The stud comprises a shank 21 having a breakable portion 22 at a mid portion thereof, a resilient section 24 formed at one end of the shank, a nut engagement portion including a threaded portion 28 extending up to the breakable portion along the shank, and a flange 23 disposed between the end of the shank and the nut engagement portion. The nut comprises an axial hole to allow the shank of the stud to pass therethrough, resilient engagement pawls 35 on the inner wall of the axial hole for resilient-engagement with the nut engagement portion of the stud, and a flange receiving surface 37 to abut upon the flange of the stud. The stud is inserted into holes of panels with the engagement section being inserted first and the nut is fitted over the stud with the flange receiving surface facing the panels. The shank is then drawn to break the breakable portion.

Abstract: A panel fastener having a turning knob which is attached to a stud in a positive locking relationship. The stud has a shaft with an enlarged stud head and a deformable lip at one end and a threaded region at the opposite end. The hollow cylindrical knob has an interior annular ridge extending radially inwardly from the inside surface of the knob thereby defining an opening through the knob. The stud extends through the ridge opening and the stud head rests on one surface of the ridge and the lip extends from the stud head through the ridge opening and is deformed to engage the ridge to permanently attach the knob to the stud. The stud head has protrusions extending radially from its circumference which positively engage a similarly shaped recess in the knob. The knob is made of a composite material that resists cracking during assembly and reduces corrosion during use.

Abstract: A metal plug with a plug screw in a casing for attachment of articles to penetrable material. The plug screw of the plug serves a dual function; fixing the plug in the material and also permitting the variation of the distance of the articles relative to the penetrable material. The plug screw has a plug-screw head at a back end, a constricted diameter portion designated as an intended breaking point, and a front end coupled to a spreading cone, a spreading head, and a fixing head. The plug is anchored in the penetrable material by means of the spreading head in the following way. First, by turning the plug screw by means of the plug-screw head, the spreading head with spreading jaws is pulled onto the spreading cone and the spreading jaws of the spreading head engage in the penetrable material.

Abstract: A fastener for insertion through aligned holes of two components to be secured to one another by the fastener. The fastener includes a shaft portion having an end; a fastener head disposed at said end; and a retaining arrangement for maintaining the fastener captive by the components. The retaining arrangement includes a conical collar situated between the shaft portion and the fastener head. Further, the conical collar surrounds the axis and has a maximum diameter base oriented toward the fastener head. The conical collar is provided with radial recesses. The retaining arrangement also has a neck part surrounding the shaft axis and disposed between the fastener head and the conical collar.

Abstract: A self-clinching fastener is provided, of the type for connection to a section of sheet material having an aperture formed therein for receiving the fastener. The self-clinching fastener comprises a head portion and a shank portion having a smaller outer diameter than the head portion and extending axially from one side of the head portion. A displacement portion extends axially from the one side of the head portion extending radially outwardly of the shank portion. An undercut annular groove is formed inwardly of the displacement portion, extending axially in the direction of the head portion and radially surrounding the shank portion. A generally annular sizing ring is formed about the shank portion axially spaced from the one side of the head portion by an amount somewhat greater than the axial extent of the displacement portion. The outer diameter of the sizing ring is greater than the outer diameter of the shank portion and also greater than the inner diameter of the undercut annular groove.