Abstract: A connection structure, of a short bar forming a conductive path and a land on a printed circuit board, in which the short bar includes a plate portion having a flat plate shape and a protrusion protruding in a stepped shape from a surface of the plate portion, the protrusion is threadably fastened to the printed circuit board by a screw inserted into a land-side through hole formed through the land, from an opposite side of the printed circuit board with respect to the protrusion, in a state where a flat surface portion formed, at a position spaced apart from the surface of the plate portion, on an outer surface of the protrusion is in close contact with the land.

Abstract: A wire connection assembly comprises a connector body and a binding screw. The connector body forms a wire receiving chamber and has a threaded bore extending perpendicular to the wire receiving chamber. The binding screw has an inner bolt and an outer bolt. The inner bolt includes an outer thread and an inner breaking point. The outer bolt includes an inner thread engaging the outer thread, a threaded section engaging the threaded bore, and an outer breaking point.

Abstract: A fastener for locking two or more sheet sections together comprises a shaft tapered at one end and having a driving head at the other end with a relatively coarse thread running from the tapered end towards the head and a relatively fine thread between the coarse thread and the head. The fine thread has a pitch which is approximately equal to the thickness of the sheet sections and extends from the head for from two to six threads.

Abstract: A press-fit component is proposed, which can be both press-fitted into an existing hole in a sheet metal component and also punched into sheet metal where there is no hole. The press-fit component exhibits a head with a bearing surface and a shaft which emanates from the bearing surface. The shaft has a trilobular cross-section and may be provided with knurling over at least part of its length. The shaft may be provided with a threaded through-hole. As a result of the trilobular form, the shaft and with it the press-fit element is secured against turning, without deformation of the sheet metal from a plane taking place during press-fitting.

Abstract: An external surface for a fastener insert to be embedded in a component includes a plurality of spaced rings surrounding a embeddable shank of the insert. The rings define a plurality of waves. The ring height can be increased progressively from a distal end of the insert to the rings nearest the head of the insert, thereby providing a generally tapered outer configuration for the insert.

Abstract: A blind rivet element includes a setting head attached to one head of a shank that is smaller in diameter than the setting head and has an opposite end with an internal female thread or a receptacle for a threaded bolt as well as a deformation section disposed axially therebetween. The blind rivet is inelastically deformed from an unset condition to a set condition thereby forming a radially outwardly protruding bead which serves to fasten the blind rivet element to a workpiece. The deformation section includes a void that interrupts the bead and defines a non-arcuate edge along that portion of the bead disposed adjacent to the void.

Abstract: A blind nut mountable in mounted members such as panels of a wide range of thicknesses. The blind nut includes an internal threading portion, a hollow tube-shaped portion adjacent to the threading portion, and an open flange formed in the tube-shaped portion on the end opposite the internal threading. The internal threading portion and the tube-shaped portion are inserted into a mounting hole in a mounted member, and a section of the tube-shaped portion is plastically deformed to enlarge the diameter in order to grip the mounted member between the deformed enlarged-diameter portion and the flange, and mount the blind nut in the mounted member. The tube-shaped portion has a tapered portion adjacent to the internal threading portion, and a cylindrical straight portion adjacent to the flange. The tapered portion and the straight portion are plastically deformed to widen their diameter and mount the blind nut on the mounted member.

Abstract: A riveting assembly includes a base plate and a stud. The base plate has a first surface, a second surface, and a riveting hole. The riveting hole is communicated with the first surface and the second surface and has at least one notch. The stud includes a main body and a riveting structure. The main body abuts against the second surface and covers the riveting hole. The riveting structure is connected to the main body. The riveting structure protrudes out from the riveting hole to abut against the first surface and to be engaged with the notch. A portion of the base plate is clamped between the main body and the riveting structure.

Abstract: Blind rivet nut with a rivet shank and method for forming blind rivet nut. The blind rivet nut includes a set head. a threaded section having a thread, and a deformation section arranged between the set head and the threaded section, having at least one reinforcement region.

Abstract: A fastening device for fastening a first component B1 to a second component B2, with automatic compensation of tolerances in the distance S between the first component B1 and the second component B2. The fastening device includes a holding element and an adjusting element. A carrying element is provided on the adjusting element, the carrying element having a ring which is spring-loaded in the axial direction of the adjusting element, and in which a carrying element includes a carrying element thread and an overcomeable carrying element thread blocking means.

Abstract: This invention provides a fastening assembly and a method for manufacturing the fastening assembly. The method for manufacturing the fastening assembly is used for an electronic apparatus. The electronic apparatus includes a first case. The method at least includes the following steps. A boss is embedded into a seat by hot melting to allow the boss and the seat to form a first fastening element, and the boss has a screwed hole. Then, the first fastening element is disposed at the first case by hot melting.

Abstract: A clamp for securing a module to a rail. The clamp has a bolt having a head and a thread. The clamp includes an insert thread having a threaded aperture for receiving the thread of the bolt. The clamp having a body including an aperture to receive the bolt and wherein a first side of the body abuts the head of the bolt. The body includes a saw-toothed edge on a second side of the body opposing the first side of the body. The clamp includes a nut having a nut aperture for receiving the insert thread and the insert thread facilitating an electrical connection between the bolt and the nut. The nut having a first nut flange and a second nut flange extending toward the head of the bolt and wherein tightening of the bolt causes the nut and the body to approach one another causing the saw-toothed edge to pierce the module and the first nut flange and the second nut flange to engage and pierce notches of the rail.

Abstract: A component assembly comprises a sheet metal and a fastener element. A flange has a larger diameter and a shaft of smaller diameter extends away from the flange and merges at its end remote from the flange into a cylindrical rivet section. The fastener element is used with sheet metals with thicknesses in the range of 3 mm and larger. With thin sheet metal parts the sheet metal has a smooth pierced cylindrical opening with a diameter corresponding to the diameter of the shaft. The cylindrical rivet section is reshaped to a rivet bead contacting the sheet metal underside. Medium thickness sheet metal parts have a stepped hole with the hole region of larger diameter receiving the rivet bead. For thick sheet metal parts the sheet metal has a conical pierced hole and the cylindrical rivet section is reshaped to a conical rivet bead wedged in the conically diverging hole.

Abstract: A functional element, in particular a bolt element consists of a shaft part and a head part designed for a rivet connection with a panel element, in particular a sheet metal part, with the head part being made hollow and having an outer diameter larger than that of the shaft part, is characterized in that the shaft part merges into the head part by a ring shoulder formed by a convexly rounded and in particular spherical surface such that the convexly rounded surface extends from the shaft part to the at least substantially cylindrical jacket surface of the head part.

Abstract: A tapped insert to be insert molded comprises a shank provided at its axial ends with flanges delineating two axially opposite heads of the insert. The shank is provided with an internally threaded axial section to form a tapping. Means for blocking the insert in rotation after insert molding and means for blocking the insert axially in translation after insert molding are arranged on the outside of the shank. The shank comprises at least one fusible area of greater axial deformability located between the threaded axial section and one of the heads. The fusible area is configured to deform under a predefined axial compressive force applied to the heads without causing deformation of the threaded axial section. The invention also relates to a method for insert molding such an insert.

Abstract: A nut plate assembly includes a nut retainer and a bushing for expanding a tubular body of the retainer. The retainer assembly is used to cold work an opening of a workpiece in order to fix the nut retainer assembly relative to the workpiece. A nut member can be snapped into the retainer. A method of installation includes passing a mandrel through the bushing to radially expand the bushing into a tubular body of the retainer. The tubular body is compressed between the workpiece and bushing as the bushing is displaced radially causing corresponding radial displacement of the tubular body. The expanded bushing applies pressure to the tubular body for a desired fit between the nut retainer and workpiece.

Abstract: A nut for fastening a first workpiece defining a through recess to a second workpiece including a bolt projecting in an axial direction through the recess, and the nut comprises an axially extending shank and flange at a first end of the shank, and the nut defines a bore extending axially through the flange and into the shank and further defines an opening to the bore proximate to the first end of the shank, and the nut further includes an elastic holding section radially outward of the opening, and the nut partially defines a depression radially outward of the holding section, so that the holding section can flex radially outward into the depression when the nut is jammed onto the bolt.

Abstract: The invention relates to a method for producing hollow body elements (200), for example, nut elements which are applied to components which are normally made of steel (280), in particular, for producing hollow body elements having an essentially quadratic or rectangular external profile (202). Said method consists of cutting individual elements of a profile in the form of a profile rod (1) or a winding after holes (204) have previously been stamped in the profile, a threaded cylinder (206) is subsequently, optionally, formed using a follow-on composite tool (10) which consists of several working stations. The invention is characterized in that a penetrating process and a punching process are carried out in the working station. The invention also relates to hollow body elements (200), components, follow-on composite tools (10) and rolling mills (600, 602).

Abstract: A piercing fastener is attachable to a panel without a hole by penetrating its surface. The fastener further includes means for attachment of a device to it so that the fastener acts as an intermediate component attaching the device to the panel. The fastener has either male or female attachment means and further includes an outside surface extending from a top end to a bottom end. Near the bottom end, a reinforcement collar includes an annular top surface for receiving a downward pressing force to install the fastener into the panel. A displacer and undercut are located immediately below the collar to effect and receive a cold flow of deformed panel material to secure the fastener to the panel. A plurality of axially extending circumferential teeth are located immediately below the undercut and comprise triangular knurls with sharp edges which penetrate the sheet as the fastener is applied. The bottom of the fastener terminates in a sharp circular cutting edge for penetrating the panel.

Abstract: The invention relates to a connection element, in particular a plate nut, comprising a base body for attachment of an arbitrary component to a metallic planar object, in particular to a sheet metal. According to the invention, the base body comprises a securement portion the cross-sectional geometry of which deviates from a circular shape, the securement portion being at least partially positively receivable in a deformation in the sheet metal. The base body is, by means of a holding device, secured in the deformation against dropping out. In an alternative embodiment of the connection element, wherein unilateral accessibility to the sheet metal is sufficient, the holding device is formed by bead portions in a shaft area of the base body, which are plastically deformed into a bead by pull-out of a threaded bolt that is screwed into a thread portion.

Abstract: A sheet metal nut including a cage part (1) that is fitted with a bottom plate (2), supporting edge sections, and opposite side plates (4, 5). Contacting final sections (15, 16) are disposed across from the supporting edge sections and grip the peripheral zones of a hole along with the supporting edge sections in a mounted arrangement of the sheet metal nut. The supporting edge sections are molded onto the bottom plate (2) while a separate securing part (10) is joined to the side plates (4, 5) and is equipped with two leg plates (11, 12) that are located between the side plates (4, 5) and extend from a base region (13) towards the supporting edge sections (24, 25) at an increasing distance from each other. The contacting final sections (15, 16) are molded onto one respective free end of a leg plate (11, 12), are aligned with their front sides directed towards one another, and lie across from the supporting edge sections (24, 25).

Abstract: The present invention relates to a cast-in channel having a channel body which forms a receiving space for receiving a connecting element used to fixedly attach a fastening element to the cast-in channel, the channel body further being provided with holes, the holes having connectors provided therein for fixedly attaching anchoring members to the channel body. The connectors are designed as rivets, whose fixing portions, which are inserted through the respective holes, are expanded so as to secure the rivets to the channel body, and which have an attachment for fixedly attaching the anchoring members to the channel body. The present invention also relates to a rivet nut for a cast-in channel.

Abstract: A threaded collapsible insert is utilized for insertion into a hole in a workpiece for subsequent installation of a threaded fastener. The insert has a axially-aligned opening extending for most or all of the entire length of the body of the insert. The hollow body has a first section and a second section, where the wall thickness of the first section is less than the wall thickness of the second section, such that the first section preferentially collapses upon application of a linear force to the insert. The second section comprises internal threads for engaging the fastener. The head member has a top side and an underside. The underside of the head member may comprise a plurality of knurls radiating outwardly on the underside of the flange. The outside of the first section may also comprise a plurality of axially aligned rib members extending from the proximal end to the distal end.

Abstract: These disclosed embodiments relates to a device for fixing a light-weight panel onto a support. Such device includes an insert including at least one flange, such insert being intended for receiving a fixing device of the bolt type. According to the disclosed embodiments, such flange has an outer surface including toothing elements and the device includes a part made of a ductile material including an opening for the passage of the fixing member. The toothing elements are intended for cooperating, upon fixing the panel onto the support, with the part made of a ductile material to allow such fixing without causing any deformation of the panel.

Abstract: A component assembly comprising a sheet metal part and a fastener element which has a flange part of larger diameter and a shaft part of smaller diameter which extends away from the flange part and merges at its end remote from the flange part into a cylindrical rivet section is characterized in that the fastener element is designed for use with sheet metal parts with thicknesses in the range of 3 mm and larger. With relatively thin sheet metal parts the sheet metal part has a smooth pierced cylindrical opening which has a diameter corresponding to the diameter of the shaft part, with the cylindrical rivet section being reshaped to a rivet bead which contacts the underside of the sheet metal part. With sheet metal parts of medium thickness the sheet metal part has a stepped hole with the hole region of larger diameter receiving the rivet bead.

Abstract: A clinch element including a body portion having an annular lip portion projecting from an end face of the body portion including an arcuate free end and a frustoconical outer surface. One embodiment includes an annular lip projecting from both end faces of the body portion. A method of attaching the clinch element to one or two panels which includes driving the free end of the lip portion against an outwardly inclined frustoconical chamfered face of a die cavity, deforming the annular lip over the panel and a die member having a projecting piloting point and an annular die cavity surrounding the piloting point.

Abstract: A nut plate assembly includes a nut retainer and a bushing for expanding a tubular body of the retainer. The retainer assembly is used to cold work an opening of a workpiece in order to fix the nut retainer assembly relative to the workpiece. A nut can be snapped into the retainer. A method of installation includes passing a mandrel through the bushing to radially expand the bushing into a tubular body of the retainer. The tubular body is compressed between the workpiece and bushing as the bushing is displaced radially causing corresponding radial displacement of the tubular body. The expanded bushing applies pressure to the tubular body for a desired fit between the nut retainer and workpiece.

Abstract: A wall surface protecting bolt support apparatus includes a bolt receiving member comprising a plate that has a first side, a second side and a peripheral edge. The plate has an aperture extending therethrough which extends into the first side and outwardly of the second side. A sleeve is attached to and extends away from the second side, the sleeve bounding the aperture. The sleeve has a distal end with respect to the plate. The distal end is open to allow a bolt to be extended through the aperture and through the sleeve. The sleeve is extendable through an opening in a wall surface and the second side is abuttable against the wall surface. The bolt is extended through the bolt receiving member and a head of the bolt is abuttable against the first side of the plate to prevent damage to the wall surface.

Abstract: Bolt element (10) having a shaft part (12) which is designed at a first end (14) for a rivet connection (16) to a panel element (18), in particular to a sheet metal part, is characterized in that the shaft part (12) has a spherical formation (22) at its other end (20) the ball diameter (D) of which is larger than that of the shaft part (12). In this manner a bolt element with a spherical head can be manufactured in an extremely favorable manner price-wise and it can be ensured that the spherical head has no burr which would lead to the wearing of the socket provided in operation which slides on the spherical head.

Abstract: A nutmount apparatus includes a sleeve, a bushing insertable into the sleeve and a nut. The nutmount apparatus may further include a nut retainer for holding an internally threaded nut. The nutmount apparatus may be used, in conjunction with a threaded screw or bolt, to secure a first structure, such as an aircraft wall or cover panel, to a second structure, such as an aircraft frame.

Abstract: A novel plastic fastening device is provided herein, which mainly contains a bolt, a nut, and at least a washer. On the surface of the washer that interfaces with the object being fastened, a number of small wedges are arranged radially with equal spacing therebetween. Inside at least one of the small wedges, a plate is embedded vertically with a saw-toothed edge facing towards the object being fastened. When the bolt and nut are screwed together and the small wedges on the washer are pressed against the object, the pointed edges of the small wedges are deformed, and the saw teeth of the embedded plate is exposed and driven into the object for a superior fastening effect.

Abstract: Disclosed is a sheet metal nut comprising a cage part (1) that is fitted with a bottom plate (2), supporting edge sections, and opposite side plates (4, 5). Furthermore, contacting final sections (15, 16) are provided which are disposed across from the supporting edge sections and grip the peripheral zones of a hole along with the supporting edge sections in the mounted arrangement of the sheet metal nut. The supporting edge sections are molded onto the bottom plate (2) while a separate securing part (10) is provided which is joined to the side plates (4, 5) and is equipped with two leg plates (11, 12) that are located between the side plates (4, 5) and extend from a base region (13) towards the supporting edge sections (24, 25) at an increasing distance from each other.

Abstract: A blind rivet for a threaded joint between a support member and a mounting member consists of a body of elastic material and a sleeve of metallic material. The body is formed as a sleeve-shaped shank adapted to be inserted into a mounting hole of the support member. The shank has a mounting flange and a folding zone adapted to be folded into a fold by a folding operation. The mounting flange and the folding zone are adapted to be supported against opposite sides of said support member. The sleeve of metallic material is disposed within the body. There are provided means for preventing twisting and torsional deformation of the body.

Abstract: Method of forming a sealed joint between a nut (20) having a cylindrical pilot (22), an annular flange portion (28) surrounding the pilot and a re-entrant groove (32) and a panel with a die having an annular lip (62) which deforms a panel portion into the groove (32) and simultaneously shaves an outer surface of the pilot onto the panel. The annular groove in the flange portion includes an arcuately inclined outer side wall (36) and an inner side wall (38) arcuately inclined toward the flange portion.

Abstract: A captive shoulder nut for a electronic module heat sink has a threaded nut portion and a tubular portion extending therefrom. A ramped section in the exterior wall of the tubular portion leads to a retaining groove adjacent the bottom face of the nut portion. A compression spring is slipped over the tubular portion to ride over the ramped section and be retained at one end in the retaining groove. The tubular portion is suitable to be inserted through a straight hole, whereof the inner diameter of the spring is larger than the hole. The free end of the tubular portion is suitable to be flared to a larger diameter than the hole, thereby establishing a captivation.

Abstract: A first and second component joint includes using a fastener having a first end, and a flange having a diameter greater than a tubular barrel portion. A second end having a second tubular barrel portion merges into a shoulder of a flange part having a greater diameter than the barrel portion. The first tubular barrel portion is deformed radially outwardly sandwiching the first component between the flange and the first barrel portion. The second end of the fastener is introduced through a hole in the second component by applying the second component to the first component so the shoulder of the flanged part abuts the second component spacing the second component from the first component. The fastener device is fastened to the second component by deforming the second tubular barrel portion radially outwardly sandwiching the second component between the shoulder and the tubular barrel portion.

Abstract: A method facilitates assembling a gas turbine engine assembly including at least a first member and a second member. The method comprises inserting a threaded fastener through an opening formed in a flange, and providing at least one shank nut including a flanged mating end, an opposite non-mating end, and a body extending therebetween. The body includes an internal surface, an external surface, and a centerline extending between the body ends. The flanged mating end includes a substantially planar exterior surface that is aligned perpendicularly to the centerline and an annular groove that extends from the exterior surface at least partially towards the non-mating end. The method also comprises securing the assembly together such that the mating end is positioned flush against the flange and such that the threaded fastener extends at least partially into a bore extending through the shank nut and defined by the shank nut internal surface.

Abstract: A device for connecting component parts includes a blind rivet nut adapted to be anchored in one component part by a riveter which has a threaded stud; a spacer which is in threaded engagement with the blind rivet nut and, by being screwed-out, reaches a position in which it is supported at the other component part; a connecting screw adapted to be screwed into the blind rivet nut; and a torque transmitting intermediate member, which is accommodated in a receptacle of the spacer and transmits a torque onto the spacer when the connecting screw is screwed in. For anchoring the blind rivet nut in the one component part, the threaded stud is capable of being inserted into the intermediate member and the spacer and then being screwed into the blind rivet nut without causing the spacer to be rotated in its screw-out direction.

Abstract: A blind rivet nut has a head configured as an annular flange and a shank comprising a head end, a foot end and a cylindrical bore closed at the foot end of the shank and extending from the head end to the foot end in lengthwise direction, and a second bore segment near the head end whose diameter is greater than the diameter of the first bore segment. The wall surrounding the second bore segment forms a plastically deformable region of the shank, and has an outer surface with the shape of a regular polygonal, in particular hexagonal, prism. To achieve a uniform and tightly sealing contact of the flange with the part accommodating the blind rivet nut, the wall thickness of the deformable region in the thinnest places is 4% to 6% of the least outside diameter of the deformable region.

Abstract: An attachment device for attaching a substrate to a support structure includes a housing having a space defined by facing wall portions. The space captures a rotatable push nut with flexible teeth. The housing is attached to the substrate using a flange positioned opposite one of the wall portions, the substrate being crimped between the flange and the wall portion. The device may be pushed onto a threaded stud to rapidly affix the substrate to the support structure. The push nut may be rotated within the housing to disengage it from the stud and thereby remove the substrate from the support structure.

Abstract: A functional element arrangement which includes a functional element which is to be mounted on a component, especially but not exclusively on a brittle or non-rigid component made of a material containing cavities or pores, e.g. plastic, wood, metal foams, plastic or metal filled with hollow bodies, or another relatively soft material, selectively embodied as a sandwich construction or as a composite material e.g. in the form of a single layered or multilayered structure comprising, for example, two layers of sheet metal or plastic and a core made of one of the above-mentioned materials. The invention is characterized in that it is provided with an auxiliary assembly element which enables the functional element to be blocked using forming techniques when it is mounted on the component in a riveting process or a stamping and riveting process.

Abstract: A cage nut assembly includes a nut having a cylindrical portion extending from a plate portion. The nut is encaged in a cage such that the cylindrical portion extends through an aperture in the cage. The cylindrical portion of the nut is collapsible such that the nut collapses and provides a plurality of flanges upon an application of force. The flanges are folded or curved/mushroomed such that the plate portion of the nut is suspended within the cage so that the nut will not, or will minimally, stick to the cage or workpiece when coated with e-coat or ELPO. Upon torqueing a fastener into place, the flanges are bent up to allow the plate portion to interface with the cage or a workpiece to provide a solid joint.

Abstract: The present invention provides a strut mount comprising an inner member (12) to which an upper extremity of a rod of a buffer is fixed, an outer member (14) attached to a vehicle while surrounding an outer circumference of the inner member, and an elastomer (16) interposed between both members to dampen vibration, wherein an attachment piece (28) of an outer fitting (14) and an attachment plate (2) of the vehicle body are curved in the form of a sphere to raise rigidity and improve vehicle running stability. Besides, a non-fastening surface portion (36) is provided by being lowered via a different level portion (34) around a bolt fastening surface portion (30) of the attachment piece (28), preventing rubber burr from being produced on the fastening surface. Furthermore, by the use of a caulking nut (52) stuck to the underside of the attachment piece (28), the weight of the products can be reduced, and cost reduction is accomplished by laborsaving during operations.

Abstract: A windage tray (26) has a captured nut (30) mounted to a retaining washer (46) through a central aperture (52) that has a tapered interior wall (58) which wholly retains a collar (42) of the captured nut for mounting the tray onto an internal combustion engine (10).

Abstract: A Spring fastener with critical configuration of the barbs, which allow the extraction of the fastener without destruction of the slot and/or the fastener. This critical configuration of the barbs allows spring fasteners to be used in slots of various widths and prevents rattling, which would take place in the case of spring fasteners of the present state of the art. The critical configuration is based on the special dimensions and special shape of the barbs with regard to the parts and the slots involved in assemblies of the spring fasteners and the parts. Assemblies of miscellaneous parts connected together by means of such spring fasteners, as well as vehicles comprising such assemblies may be made.

Abstract: A blind rivet nut has a shank with a thread and a deformation zone. The blind rivet nut has also a set head with a larger outside diameter than that of the shank. The set head has a deformable extension on a side opposite the shank. A fastening unit formed with the blind rivet nut has a bolt having a threaded shank and a bolt head with an outside diameter larger than an outside diameter of the threaded shank and at least as large as an outside diameter of the deformable extension.

Abstract: A nut body 11 having a central female thread 12 also has a first and a second slit 13 and 14 formed to partly penetrate the internal female thread from the opposite sides. The distance b between the bottoms of the first and second slits 13 and 14 is in a range of 0.15 to 0.8 times the nominal diameter d. A first and a second push part 15 and 16 which are formed in an upper part of the nut body 11 by the first and second slits 13 and 14 bent downward by plastic deformation.

Abstract: A threaded blind insert includes a shank with an axial bore therethrough having a head at one end and a threaded region of the bore at the opposite end. The wall of the shank between its outer surface and the bore includes a weakened deformable portion created by a reduced outside diameter of the shank in that area. A reinforcement collar integral with the shank is located at approximately the middle of the deformable portion of the shank thus providing a more rigid area at the collar which creates bulges in the deformable portion on either side of the collar when the insert is compressed. A flange located adjacent the underside of the head of the insert has an outer diameter greater than the shank but less than the head. When fitted into a mounting hole of a workpiece, the flange centers the insert and provides an annular gap between the shank and the mounting hole.

Abstract: The disclosure relates to a method of producing an electrical connection to a sheet metal part, in particular to a sheet metal part having a non-conductive or poorly conductive protective layer, using a hollow fastener element which is mounted by means of the riveting or pierce riveting process to the sheet metal part, wherein a terminal lug is attached by means of a screw to the hollow fastener element, i.e. to the sheet metal part. The method is characterized in that the screw which is screwed into the hollow attachment element penetrates the sheet metal part and forms or reforms a thread in the sheet metal part. The disclosure furthermore relates to a component assembly which is produced in accordance with the said method.

Abstract: The present invention provides a strut mount bolted to a curved outer cylinder attachment plate (6) without enlarging abolt hole, by inserting a cylindrical portion (13) of a caulking nut (5) into a nut attachment hole (11) of an attachment piece (10) of an outer cylinder (2) and pressurizing and diminishing in diameter the circumference of the nut attachment hole (11) to caulk and stick the nut attachment hole (11) and the caulking nut (5).