Abstract: A protection seal cap for enclosing an end portion of a fastener which extends from a structure, which includes a cap member, which includes a sidewall that defines an interior space within the cap member. The sidewall forms a continuous wall member positioned within the cap member. The continuous wall member defines an opening providing access to the interior space. The continuous wall member is configured to create an interference compression fit between the end portion of the fastener and the continuous wall member.

Abstract: A cap system for enclosing a metallic fastener assembly extending through a structure, which includes a first securement mechanism positioned about a periphery of a nut member of the metallic fastener assembly, wherein the first securement mechanism comprises a plurality of continuous grooves which extend about the periphery of the nut member. The cap system further includes a cap member which includes a sidewall having an inner surface which defines a cavity dimensioned to receive the nut member and defines a second securement mechanism complementary configured to engage the first securement mechanism positioned about the periphery of the nut member. The cap system also includes an end of the sidewall of the cap member defines an opening which provides the nut member to have access into the cavity.

Abstract: A cap system for enclosing a metallic fastener assembly extending through a structure, which includes a first securement mechanism positioned about a periphery of a washer of the metallic fastener assembly wherein the first securement mechanism includes a first tab member extending in a direction transverse to a plane of a surface of the washer and a second tab member extending in a direction transverse to the plane of the surface of the washer spaced apart from the first tab member about the periphery of the washer. Cap system further includes a cap member which includes a sidewall having an inner surface which defines a cavity dimensioned to receive the washer and defines a second securement mechanism complementary configured to engage the first securement mechanism; and an end of the sidewall of the cap member defines an opening which provides the washer to have access into the cavity.

Abstract: A bolt-covering cap which is self-threading and gives little resistance when being threaded onto a bolt but greater resistance when being unthreaded, providing for easy installation, a tight and secure fit resistant to inadvertent loosening, and intentional removal when needed. The bolt-covering cap provides a cover shell and three angled blades which slightly deflect in one direction, requiring less turning force, and which resist deflection in the opposite direction, requiring more turning force and resisting inadvertent loosening.

Abstract: The invention relates to an insert for connecting an electric connection to a wall (10), having a pin (1) with a shaft (4), which has a first connection means (5), and an electrically conductive ring (2) with a through-opening (6) for receiving the pin (1), wherein the shaft (4) of the received pin (1) protrudes out of a contact surface (11) of the ring (2). For protection purposes while working, for example while painting, the insert comprises a protective cap (20, 20?) with a holding portion (21, 21?) comprising a second connection means (26), which can be connected to the first connection means (5) of the pin (1), and a flange section (22, 22?) which rests against the contact surface (11) of the ring (2) when the protective cap (20, 20?) is connected.

Abstract: A cap system for enclosing a metallic fastener assembly extending through a structure includes a first securement mechanism positioned about a periphery of a nut member of the metallic fastener assembly, wherein the first securement mechanism comprises threads which are interrupted as the threads extend about the periphery of the nut member and a cap member. The cap member includes a sidewall having an inner surface which defines a cavity dimensioned to receive the nut member and defines a second securement mechanism complementary configured to engage the first securement mechanism positioned about the periphery of the nut member and an end of the sidewall of the cap member defines an opening which provides the nut member to have access into the cavity.

Abstract: A cap system for enclosing a metallic bolt fastener extending through a structure which includes a first securement mechanism positioned about a periphery of a bolt head of the metallic bolt fastener. The cap system further includes a cap member which includes a sidewall having an inner surface which defines a cavity dimensioned to receive the bolt head and defines a second securement mechanism complementary configured to engage the first securement mechanism positioned about the periphery of the bolt head. The cap system further includes an end of the sidewall of the cap member which defines an opening which provides the bolt head access into the cavity.

Abstract: A device for fixing a blank to a modular support system includes a body having cylindrical symmetry which is provided at one end with a centering collar and, in a central region, with a perimetric recess that defines an engagement undercut for a corresponding locking component of a modular support system. The body has an axial through hole for a threaded fixing element. The axial through hole is open onto a coaxial seat for resting the head of the threaded fixing element, and it has a larger diameter than the outside diameter of the stem of the threaded fixing element. The head of the threaded fixing element has a resting surface, a substantially spherical geometry, and a smaller outside diameter than the corresponding internal dimension of the resting seat in which the threaded fixing element is accommodated.

Abstract: A cap system for enclosing a metallic fastener assembly extending through a structure includes a first securement mechanism positioned about a periphery of a washer of the metallic fastener assembly wherein the first securement mechanism includes threads. The cap system further includes a cap member including a sidewall having an inner surface which defines a cavity dimensioned to receive the washer and defines a second securement mechanism complementary configured to engage the first securement mechanism positioned about the periphery of the washer. An end of the sidewall of the cap member defines an opening which provides the washer to have access into the cavity.

Abstract: A fastener cover assembly is disclosed. The cover assembly includes a turbomachinery component having an outer surface exposed to an air flow path; at least one recess formed in the outer surface; a fastener contained in the at least one recess; and a fastener cover secured in the at least one recess, the cover having an outer surface substantially flush with the outer surface of the component to minimize air flow disruption.

Abstract: A rotating inlet cowl for a turbomachine, comprises a cone, a shell and a plug. The plug comprises an external wall with an external surface that will form an aerodynamic profile in continuity with an external surface of an external wall of the cone, when the external wall closes off a cavity that is formed between the external wall of the cone and the shell. The plug comprises an internal wall of the support and an attachment device. The attachment device is configured to pass through the support and to rigidly fix the support wall to an internal wall of the cone and the internal wall of the cone to the shell simultaneously, through an orifice in the external wall.

Abstract: The present disclosure relates to a closure element of a drive means opening of a connection element. Further, the present disclosure relates to an installation holding element with a plurality of closure elements of the drive means opening of a connection element, wherein the closure elements can be installed manually without tool in the drive means opening of the connection element. For this purpose, the installation holding element comprises a holding element, a handle portion as well as a plurality of closure elements arranged at the holding element.

Abstract: A fastening device for fastening a first component to a second component in a tamper-proof manner, includes a screw having an actuation region that can be at least partially arranged in a receptacle of the first component; and a threaded region that is connected to the actuation region and can be connected to the second component in a retaining manner. In addition, the screw includes a security projection which adjoins the actuation region, and is arranged on the side of the actuation region facing away from the threaded region and has latching element that engages with a counter latching element of a covering device of the fastening device, wherein the covering device at least partially covers the receptacle.

Abstract: A closer for an attachment orifice of an OGV in a turbine engine, the vane having a blade fixed to a root provided with attachment orifices, the closer including a cup adapted to be fixed in the attachment orifice of an OGV; a cylindrical shaped plug engaging in the cup, the plug including an upper face inclined relative to the ground plane of the plug; a guide adapted to position the plug on the cup by rotation into a working position, in which the upper face of the plug coincides with the surface level of the vane root; a blocking system to block the plug in the working position.

Abstract: An improved fastener comprising: a screw element (1) and a cover member (11). The screw element (1) comprising a shank member (2) having comprising a piercing tip (6) at a first end of the shank member and a head (7) at a second end of the shank member. The head of the screw comprising a first recess (9) for releasably engaging an instrument of rotation and a second recess (10) extending from the first recess into the shank member for releasably engaging a shank portion (14) of a cover member (11). The cover member (11) comprising a capping portion (12) having a first face (13), a second face (17) and a shank portion (14) extending substantially orthogonally from the first face (13) of the capping portion (12), the shank portion (14) being releasably engagable with the second recess (10) of the screw element (1).

Abstract: A connection node comprising a base member and plug member. The plug member retracts into, and extends out of, the base member which can be installed in a floor, wall and/or ceiling. When the plug member is retracted, a cap may be used to conceal the base unit and plug member within the floor, wall and/or ceiling. The base member and plug member may be cylindrical whereby the plug member has a threaded exterior surface which mates with a threaded interior cavity of the base member. In such a configuration, the plug member may be removed from or inserted into said base member allowing a connection member (e.g., eye-hook) to be inserted. A series of connection nodes may be installed within the floor, walls and/or ceiling of a subject environment to create a system for connecting articles.

Abstract: A hardware apparatus includes a base portion formed by a disc-shaped base plate and a cylindrical member. The cylindrical member includes a first threaded surface. The disc-shaped base plate includes a first opening and the cylindrical member includes a second opening, with the first and second openings being concentric. The hardware apparatus further includes a cap portion including a second threaded surface. The cap portion is attachable to said base portion through engagement of the first and second threaded surfaces. In one implementation, the first threaded surface is an outer surface and the second threaded surface is an inner surface. In an alternative implementation, the second threaded surface is an outer surface and the first threaded surface is an inner surface.

Abstract: A system for use in covering a portion of a fastener protruding from a surface is provided. The system includes a cap that includes an interior, a base that at least partially delimits the interior, and pawls on the interior. The system may also include a tooth configured to be associated with the fastener and configured to positively engage the pawls.

Abstract: Devices, systems, and methods for securing a component to a surface are disclosed. The fastening device can include a base member having a threaded projection extending from a base plate. A base sealing gasket can be provided between the base plate and a surface on which the base plate is mounted to ensure a water-tight fit. A capping nut having a nut aperture can be threadably engaged to the treaded projection, and a structural fastener can be inserted through the nut aperture for securing a structural component of a building-mounted structure. A nut sealing gasket can be disposed between within the capping nut to ensure a water-tight fit between the capping nut and the base member.

Abstract: Decorative toilet bolt caps having and elongated tube positioned above an aperture are disclosed. The cap may be formed of a single unit of material. By virtue of having an elongated tube positioned above an aperture, the cap may cover a closet bolt having an unreduced length.

Abstract: A license plate security device comprises a spin barrel into which a license plate mounting machine screw is inserted. These are inserted into a spin barrel assembly with a closed bottom and an open top. The license plate is installed on the vehicle using at least one of these license plate security devices, more machine screws, and an ordinary screwdriver. A machined slug is inserted into the opened end of the spin barrel and secured by security set screw to keep from getting access to the head of the machine screw. With slug in place it helps keep out dirt, water, and rust. Removing the license plate now requires a security tool to remove the security set screw from the spin barrel and slug to access the head of the machine screw. Turning the spin barrel only will not remove the machine screw because it cannot transmit enough torque.

Abstract: A license plate security device comprises a spin barrel into which a license plate mounting machine screw is inserted. These are inserted into a spin barrel assembly with a closed bottom and an open top. The license plate is installed on the vehicle using at least one of these license plate security devices, more machine screws, and an ordinary screwdriver. A machined slug is inserted into the opened end of the spin barrel and secured by security set screw to keep from getting access to the head of the machine screw. With slug in place it helps keep out dirt, water, and rust. Removing the license plate now requires a security tool to remove the security set screw from the spin barrel and slug to access the head of the machine screw. Turning the spin barrel only will not remove the machine screw because it cannot transmit enough torque.

Abstract: A T-nut includes a cylindrical shaft section that opens at both ends and includes an internal thread at an inner peripheral surface thereof; a flange that extends outwardly from a first end portion of the shaft section; and a sealing member that seals the first-end-portion-side opening of the shaft section, and is formed of elastomeric resin. The sealing member includes a circular cylindrical portion and a dome-shaped cover, the circular cylindrical portion closely contacting the inner peripheral surface and opening at a first-end-portion side, the cover being formed continuously to an edge of the circular cylindrical portion at a second-end-portion side, a top of the cover facing the second-end-portion side, an outer peripheral surface of the circular cylindrical portion having an externally threaded long-and-narrow protruding portion that seals a space at a root of the internal thread.

Abstract: A T-nut includes a cylindrical shaft section that opens at both ends and includes an internal thread at an inner peripheral surface thereof; a flange that extends outwardly from a first end portion of the shaft section; and a sealing member that seals the first-end-portion-side opening of the shaft section, and is formed of elastomeric resin. The sealing member includes a circular cylindrical portion and a dome-shaped cover, the circular cylindrical portion closely contacting the inner peripheral surface and opening at a first-end-portion side, the cover being formed continuously to an edge of the circular cylindrical portion at a second-end-portion side, a top of the cover facing the second-end-portion side, an outer peripheral surface of the circular cylindrical portion having an externally threaded long-and-narrow protruding portion that seals a space at a root of the internal thread.

Abstract: Disclosed is an apparatus for mounting equipment or solar photovoltaic structures to roofs where the apparatus base plate engages the roof surface directly, creating a water resistant seal, without the need for flashing. The base plate upper surface includes an upwardly projected portion that is circumscribed by a groove. The base plate lower surface includes a counterbore. Both the counterbore and the groove are disposed to receive annular seals. A threaded fastener is received and seated the upwardly projected portion top surface and feeds through the counterbore, securing the base plate to the roof structure and creates a water resistant seal by compressing the lower annular seal and by creating surface-to-surface contact with the roof and portion of the base plate. An inwardly threaded cover portion engages the upwardly projected portion either directly or through an intermediary, creating a water resistant seal over the fastener.

Abstract: An apparatus for preventing removal of, or tampering with, a construction fitting includes two construction element engaging components and a fastener for connecting the two construction element engaging components to one another. The fastener includes a bolt extending between the two construction element engaging components and a nut for tightening on the bolt rigidly connecting the two engaging components with a gap therebetween. A body portion, for at least partially covering a nut, prevents access thereto by an unfastening tool with the body portion extending from the nut to a position alongside the bolt within the gap. A locking device is able to be moved relative to the body portion between a first position, in which the apparatus is removable from the construction fitting, and a second position in which the apparatus is prevented from being removed from the construction fitting with the locking device extending, in the second position, from the body portion in a direction toward the bolt with the gap.

Abstract: An anchor rod cap and method for protecting an anchor rod bolt/nut/lower flange assembly are provided. An anchor rod is provided having an upper tubular element adapted to be disposed about anchor rod threads and having an interior surface defined on a radius smaller than an anchor rod thread outer radius. A lower bottom enclosure is adapted to be spaced from an anchor nut located on the bolt.

Abstract: A toilet bolt cover hides the portion of a toilet bolt extending upwardly through a mounting hole in the toilet base along with a washer and a nut threaded upon the bolt. The cover includes a base and a cap. The base has a wall with external threads and the cap has internal threads. The base of the cover has a descending member that extends downwardly into the mounting hole in the toilet base to limit rotation of the base of the cover.

Abstract: A pivot shaft includes a shaft member having a male screw portion to be thread-connected to a vehicle body frame, and a nut member having a female screw portion to be thread-connected to part of a male screw portion of the shaft member corresponding to a projecting thread portion projecting from the vehicle body frame. The nut member as a locknut is attached so as to prevent the rotation of the adjusted shaft member. The locknut is a nut member formed into a cap-shape or a ball-head locknut shape. A tool engaging portion to which a multi-purpose tightening tool can be engaged is formed on the nut member. Since the multi-purpose tool can be engaged with the tool engaging portion on the nut member accurately, control of a tightening torque is facilitated, and the number of steps for controlling the tightening torque can be reduced.

Abstract: A bicycle crank arm apparatus includes an axle having a first end portion and a second end portion, wherein the first end portion has an outer peripheral surface and a threaded inner peripheral surface; an axle bolt having a threaded outer peripheral surface screwed into the threaded inner peripheral surface of the first end portion of the axle; a crank arm having an axle mounting boss defining an opening for receiving the first end portion of the axle therein, wherein the axle mounting boss includes a first fastener for tightening the crank arm mounting boss around the first end portion of the axle; and wherein the crank arm boss is positioned axially inwardly of the axle bolt.

Abstract: A lockout device for restricting access to a nut through which a stud passes in threaded engagement with the nut comprises a cylindrical cap and a corresponding adapter. The cap includes first and second opposite ends and has a hollow portion opening through the first end of sufficient size for receiving most or all of the nut. A threaded hole sized for threaded engagement with the stud extends in an axial direction through the second end of the cap to communicate with the cap's hollow portion. The adapter includes a leading end and a trailing end, and has a hexagonal configuration adjacent its trailing end and an axially extending stud hole through its leading end sized to accommodate the stud. The second end of the cap and the leading end of the adapter are configured for end-to-end coupling with one another, such as by providing pin holes and corresponding pins, to enable torque to be transmitted from the adapter to the cap while the cap is in threaded engagement with the stud.

Abstract: A captive nut assembly that allows removal of one or more workpieces and/or provides access to an area between a plurality of workpieces is provided. The captive nut assembly includes a screw with an elongated shank that is adapted to be located in an opening of one or more workpieces and terminates at one end in an enlarged head. The shank has a threaded portion adapted to be secured to an other workpiece. The captive nut assembly also includes a captive nut that is rotatably mounted on the threaded portion of the screw and moveable along the shank of the screw with the head of the screw being located within the bore of the captive nut.

Abstract: A device (20) for sealing an aperture (22) for a fixing such as a bolt (24) for a sealed enclosure (26) has a body (28) having an aperture (30) extending from a first surface (32) to a second surface (34). Body (28) also has a chamfered surface (36) and a retaining means (38) adjacent the first surface (32) to engage and seal the body (28) within aperture (22) of enclosure (26). Body (28) also has a cap engaging means (40) adjacent the second surface (34). The device also includes a cap (42) and a sealing gasket (46). In order to provide an adequate seal preventing water entering enclosure (26), the body 28 is inserted into aperture (22) and attached thereto. The enclosure is then offered to a wall and bolt (24) inserted through aperture is then offered to a wall and bolt (24) inserted through aperture (30) and fixed in a corresponding hole in the wall. The cap (42) can then be located on body (28) and gasket (46) assists in sealing the cap (42) and body (28).

Abstract: A sluice-gate wall thimble has a support stem (1, 12) which covers an embedment side of a sluice-gate nut (2) and is fixable to a wall anchor (5, 11). The sluice-gate nut is inside threaded and fixable to an embedment side (16) of a predetermined sluice-gate wall (7) with an axis of the sluice-gate nut being in line concentrically with an axis of a wall-bolt aperture (8) on the predetermined sluice-gate wall. A plurality of the support stems on a plurality of the sluice-gate nuts in line with a plurality of the wall-bolt apertures and fixed to at least one wall anchor are employed first to prevent encroachment of fluid concrete (3) or other foundation material onto inside-diameter threading (4) of the plurality of sluice-gate nuts during construction of a predetermined sluice gate.

Abstract: A hitch pin used for releasably connecting a load carrier frame to a receiving hitch attached to a carrying vehicle for transporting objects such as bicycles on the load carrier. The hitch pin includes a bolt having a head portion opposite a threaded section and a stem integrally formed between the head portion and the threaded section. A sleeve includes a bore, sized to receive the head and the stem of the bolt which is slidably held inside the bore of the sleeve using a transverse pin, secured inside the bore of the sleeve and passing through an elongate slot in the stem of the bolt. When the sleeve is rotated, the transverse pin transmits the rotation to the bolt providing the turning motion used during connecting of the frame to the receiving hitch. The connection may be made in two stages with hand-tightening as the first stage, followed by application of mechanical force, operating from a set screw, through the bolt to intensify the contact between the frame and the receiving hitch.

Abstract: A fastener comprising an elongated body having a longitudinal axis and an outer surface and first and second ends, a separate seating configuration on the first end, a ridge extending circumferentially about the body adjacent to the seating configuration, a plurality of splines on the outer surface extending from the second end toward the first end and terminating at the ridge, and grooves between the splines extending from the second end toward the first end and through the ridge. The separate seating configuration can be mounted on a knurled surface with which it has an interference fit. A decorative cap can be mounted on the first end of the elongated body.

Abstract: A device for preventing disconnection of a coupling. The device includes a main body portion having defined therein a fastener chamber and an opening in communication with the fastener chamber. The opening is located above the fastener chamber. In a preferred embodiment, a standard size socket cannot be inserted into the opening.

Abstract: A lug cap includes a detent along the inner wall. The detent has an engaging surface that begins shortly after a threaded portion of the lug cap ends. The engaging surface ramps up to a top surface that runs parallel to the inner wall. The lug nut engages the detent which prevents the rotation of the lug cap with respect to the lug nut by increasing the force required to loosen or tighten the lug cap from the lug nut.

Abstract: A handle fixing structure including a nut member which is received inside of a recess of a handle and couples the handle with a driving shaft, a nut lock member aligned inside of the recess by being in close contact with the nut member for prevention of looseness thereof the nut member, and a cover for shielding the recess and limiting movement of the cut lock member through contact therewith during shielding. The nut lock member has a polygonal groove on an internal peripheral surface thereof for receiving the nut.

Abstract: A fastener, for releasably securing movable panels or other components of a support device, includes a clamping member having a cap and an externally threaded shank, a clamping knob internally threaded for movement along the shank, and a retaining member having a threaded shaft received into an internally threaded aperture of the shank. The external shank threads and internal knob threads have a relatively coarse pitch, while the shaft threads and internal aperture threads have a relatively fine pitch. The clamping knob includes a recess with a locking shoulder that engages a head of the retaining member, thus to determine a locked position for the knob, preventing further movement of the knob in the axial direction away from the cap. The locked position can be set to coincide with a clamping position of the knob, or alternatively spaced apart to allow limited axial travel of the knob.

Abstract: There is provided a new and improved wheel nut locking assembly for use on a wheel nut on a hub of a vehicle wheel, in which the wheel nut comprises a polygonal outer surface and a threaded inner surface which is constructed so as to engage a shaft. The shaft has a threaded portion and a non-threaded polygonal head extension with a threaded aperture therein. The assembly comprises a locking cap which has a recess adapted to receive the wheel nut in one of a plurality of orientations in a rotationally locked arrangement relative to the shaft. There is also provided an aperture which is adapted to receive and engage the polygonal head extension so as to prevent rotation of the locking cap and the wheel nut relative to the shaft.

Abstract: Disclosed are threaded seal caps suitable for sealing the ends of common screw and bolt connectors for various purposes including protective/safety, ornamentation and pressure seals in chemical and physical processes or as a guard for a switch. The seal caps include a threaded inside surface for attachment to washers having a threaded outside surface. The caps can include an o-ring gasket for sealing a pressurized connector. The washers are preferably made from a suitable section of all-thread.

Abstract: A fastener retention system for a wheel cover of a vehicle that comprises a stud attached to, and projecting axially from, a brake system of the vehicle. The stud includes an outer surface that has a plurality of helical threads disposed thereon. Further included is a lug nut that has an end portion including an inner surface with a plurality of helical threads disposed thereon for screwingly engaging the helical threads of the stud. The end portion of the lug nut includes an outer surface having a plurality of helical threads disposed thereon. Moreover, a nut end, integrally formed with the end portion, is included and has a plurality of ramped teeth disposed radially thereon and opposite the end portion. A decorative cap nut for covering, and fixedly attaching to, the lug nut, is also included in the present system.

Abstract: A one-piece, reuseable cover is provided for an assembly of a threaded bolt and an associated annular nut, wherein a portion of the bolt extends through the nut. The cover includes a closed top end portion and a generally cylindrical sidewall extending from the closed top end portion so as to define a generally hollow cavity within the cover. Within the cavity of the cover is located an internally threaded portion, the threads of which are adapted to mate with the external threads on the bolt, so that the cover may be attached to the portion of the bolt that extends through its associated nut by threaded engagement therewith, when the cover is installed over the bolt and nut assembly.

Abstract: A protective cover 12 for a ball joint assembly 10 includes a generally cylindrical plug 96 with axially extending resilient fingers 100 engageable with a shaft 40 of a stud 26 of the ball joint assembly 10 to prevent removal of the cover 12 from the ball joint assembly 10. A frustoconical cam surface 90 on a generally cylindrical sidewall 72 defining a chamber 70 for enclosing the stud 26 moves the fingers 100 toward the stud 26 upon movement of the plug 96 relative to the cam surface 90.

Abstract: Novel fastener assemblies self-conforming to contoured surface panels being fastened to support members and minimizing radar cross-section by providing a non-reflective surface shield component over the basic fastening component or bolt. The invention provides a method for reducing the amount of microwave radiation normally reflected back to its source by aircraft panel fasteners or bolts and/or by the recessed walls of bolt access openings at contoured surface areas. The invention comprises a novel fastener assembly of a threaded shield bolt engaged within a main fastening bolt, the shield bolt having a flexible, surface-conforming head of a metal alloy having high temperature stability properties.

Abstract: A vehicle wheel lug nut cover comprises a dome shaped tube having an open end that is larger than the lug nut and a closed end with an internal jam nut that is threaded to the end of the lug bolt extending from the lug nut. Lug nut covers may be used to secure a wheel cover to the wheel of the vehicle without removing a lug nut.

Abstract: A cap for fastening devices comprises an inner cap member fittable over a hexagonal engageable portion of the fastening device and having a top wall centrally formed with a threaded bore, an outer cap member fittable over the inner cap member and having a bolt hole formed in a top wall thereof and corresponding to the threaded bore in position, and a bolt to be screwed into the bore through the bolt hole. The inner cap member has a peripheral wall formed with six deformation promoting slits extending longitudinally thereof. The outer surface rear end portion of the peripheral wall has projecting tapered portions for inwardly moving the rear end portion of the inner cap member when the outer cap member is slidingly moved relative to the inner cap member by rotating the bolt relative to the inner cap member in a screwing-in direction.

Abstract: The present invention provides a method and apparatus for adapting standard threaded fasteners for use with a standard stud tensioner. An adapter has internal and external threads. The internal threads mate with the external thread of the stud to be tensioned. The external threads of the adapter engage the internal threads of a fastening nut having slots on the top thereof for engagement with a turning wrench of the tensioner. The adapter has a central threaded bore on the top portion thereof which is adapted to threadably engage the puller bar of a tensioning apparatus. The stud is elongated by actuation of the tensioner, via the puller bar, lifting the adapter as the stud is tensioned. When appropriate strain is achieved on the stud, the fastening nut is turned down to a fastened position and the stud then can be relaxed.

Abstract: A lug nut and dress cap that enables a standard sized lug wrench to be employed whether the cap is in place or lost, the cap having the same standard lug wrench size as the nut. The cap is a deep drawn element having a hollow hexagonal configuration adjacent its outer closed end and specially formed threads adjacent its inner open end that interlock with the cut machined threads of the lug nut. The cap threads have a curvilinear, radiused root and a curvilinear, radiused crest. The cap outer end extends beyond the lug nut. The middle or intermediate portion of the cap between the hexagonal outer end portion and the threaded inner end portion has a diameter larger than the diameter of the hexagonal portion of the cap and larger than the diameter of the hexagonal outer end of the lug nut.