Abstract: A pair of latch members 36R, 36L in a case 20C protrudes from an outer face of the case 20C by a spring 38 and when the case 20C is passed through a wall hole 22H, the latch members 36R, 36L are narrowed by an engagement between outer edge (guiding) slant face 36ROI, 36LOI and a wall hole 22H and after the case 20C has passed through the wall hole 22H, the latch members 36R, 36L are spread by a spring 38 so as to engage the engagement slant faces 36RLI, 36LLI with the wall hole 22H and also while fixing temporarily the case 22C to the wall 22 together with a flange 20FL of the case 22C. After that, a screw 32 is screwed to draw the nut 34 toward the flange 20FL and to engage securely the latch members 36R, 36L held to the nut 34 with the wall hole 22H to complete secure fixing of the case 20C.

Abstract: A connecting assembly for connecting a cable end of a wire rope to a structure. Each connecting assembly includes a structure attachment interface and cable end attachment interface. The structure attachment interface is adapted to mount to the structure at a point on the structure without the connecting assembly exiting the structure at any other point on the structure. The cable end attachment interface is adapted to mount the cable end to the connecting assembly.

Abstract: A blind fastener may include a bolt. The bolt includes a head, a shank coupled to the head, and a number of external threads formed on the shank. The blind fastener may also include a mount coupled to the bolt, and a fastening block coupled to the mount. The mount may include a body, at least one arm extending from the body, and at least one pivot mount formed on and extending from the arm about which the fastening block pivots.

Abstract: A toggle cam bolt is provided including a shank, a cam lever, a recess, and a toggle. The shank includes a first end and a second end. The cam lever is rotatably attached to the first end by a first pivot pin. The cam lever includes a lever handle and a cam lobe that is eccentric relative to the first pivot pin. The recess is located at the second end of the shank. The toggle is attached to the recess so that it is rotatable about a second pivot pin. A method of clamping two or more parts together using a toggle cam bolt is also provided.

Abstract: A device for securing safety guards around machinery includes a portable wedge clamp device which is inserted through both the safety guard and the post. The portable wedge clamp device includes a base wedge member and a cooperating drive wedge member. The bullet-shaped end of the drive wedge member is modified to include a groove around which a cable tie is used to prevent the drive wedge member from rattling and from moving and becoming unlocked. Alternatively, the bullet-shaped end of the drive wedge member includes a slot through which the cable tie is secured.

Abstract: A device includes a body portion and a moveable fastener extension coupled to the body portion. The moveable fastener extension is configured to be inserted in an opening of an electrical ground lug and an opening of an object to be grounded. The device further includes a handle coupled to the moveable fastener extension and configured to be operated by hand to manipulate the moveable fastener extension to secure the electrical ground lug to the object via the device.

Abstract: A device for closing an aperture in a vessel wall comprising a covering member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture and having a dimension to prevent egress of fluid through the aperture and having a first opening. A first retainer is positionable external of the vessel. A flexible connecting member operatively connects the covering member and the first retainer, wherein the first opening of the covering member is configured to restrict movement of the connecting member.

Abstract: An example toggle bolt catch for use with a toggle bolt is described. The toggle bolt catch includes a collar eyelet and a toggle catch. The collar eyelet includes a cylindrical ring having a central opening to allow the toggle of a toggle bolt to pass through and a flange that extends radially outward from the cylindrical ring. The toggle catch includes a minor arc stem that extends away from a back of the cylindrical ring. In use, the toggle bolt catch is inserted through a hole formed in drywall, for example, with the minor arc stem extending in the open space behind the drywall. When the bolt of the toggle bolt is rotated, the toggle can rotate only until it contacts the minor arc stem, after which further rotation of the bolt will draw the toggle of the toggle bolt toward the bolt without additional rotation of the toggle.

Abstract: A device for closing an aperture in a vessel wall comprising a covering member having a longitudinal axis and positionable inside the vessel against the internal opening of the aperture and having a dimension to prevent egress of fluid through the aperture and having a first opening. A first retainer is positionable external of the vessel. A flexible connecting member operatively connects the covering member and the first retainer, wherein the first opening of the covering member is configured to restrict movement of the connecting member.

Abstract: A mechanical-coupling device is described. The mechanical-coupling device includes a toggle bolt with a fixture in a bolt head that remateably mechanically couples to an attachment tool. The device may further include an anchor nut having an anchor wing or tab. During mechanical coupling of the anchor nut to the bolt with a mounting material, such as a wall, countertop or sink, between the bolt head and the anchor nut, the fixture may convey a pulling force, from the attachment tool, that results in fixing a position of the anchor nut with the anchor wing or tab in a deployed position. Moreover, the fixture may convey a rotational torque, from the attachment tool, about a symmetry axis of the bolt that rotates the bolt relative to the fixed position of the anchor nut so that a distance between the bolt head and the anchor nut decreases.

Abstract: A connector assembly includes a connector device and a base part provided with a mounting face that defines a throughhole having a forming wall structure for receiving a bolt and for receiving and retaining the connector device. The connector device has a rear portion and a front portion engaged together for movement relative to one another, the rear portion defining a threaded bolt hole for engaging the bolt extending through the throughhole and having a driven element positioned thereon. The front portion defines an access opening for receiving the bolt. Engagement of the driven element moves the rear portion relative to the front portion such that the bolt hole is aligned with the access opening and receives a threaded end of the bolt.

Abstract: A method and apparatus that may be utilized for chemical vapor deposition and/or hydride vapor phase epitaxial (HVPE) deposition are provided. The apparatus includes a showerhead assembly with separate inlets and manifolds for delivering separate processing gases into a processing volume of the chamber without mixing the gases prior to entering the processing volume. The showerhead includes a plurality of gas distribution devices disposed within a plurality of gas inlets for injecting one of the processing gases into and distributing it across a manifold for uniform delivery into the processing volume of the chamber. Each of the gas distribution devices preferably has a nozzle configured to evenly distribute the processing gas flowing therethrough while minimizing recirculation of the processing gas within the manifold. As a result, improved deposition uniformity is achieved on a plurality of substrates positioned in the processing volume of the processing chamber.

Abstract: A surgical fastener and a related deployment device as well as their methods of use are disclosed. In one embodiment, the deployment device includes one or more surgical fasteners including a head and a distally extending coil body attached to the head. The head includes a through hole with an internal thread. The deployment device also includes a mandrel including a threaded portion located at a distal end of the mandrel. The threaded portion is engaged with the internal thread of the one or more surgical fasteners. A rotator is associated with the one or more surgical fasteners such that the rotator can selectively rotate the one or more surgical fasteners relative to the mandrel to displace the one or more surgical fasteners in a distal direction.

Abstract: The current invention concerns a method and device for securing cargo load in a container. In an embodiment of the current invention, such method comprises: providing a wall securement device comprising two or more apertures allowing the passage of securing means such as straps, which wall securement device is attached to an inner rigid structure of the wall; and lashing the cargo load with securing means by use of the wall securement device, whereby the wall securement device is located at the corner post of said container. In a second aspect, the current invention provides for a wall securement device for securing loads.

Abstract: An adjustable height hitch apparatus for a trailer includes a base having opposite first and second end portions. An elongated shaft extends outwardly from the base first end portion, and an elongated height adjustment member is attached to the base second end portion. A coupling apparatus, such as a lunette ring, is supportable by the height adjustment member via one or more fasteners at any of a plurality of elevations. The height adjustment member is configured to provide height adjustment for the coupling apparatus of at least about eight inches.

Abstract: A hinge has at least one hinge part which can be mounted in an opening in a thin wall such as a sheet-metal cabinet door, a head part, such as a flange or hinge leaf, which overlaps the rim of the opening of the thin wall on its (outer) side, and a body part which proceeds from the head part and can be pushed through the opening in the thin wall, and a holding part which is carried by the body part, supported on the other (rear) side of the thin wall, and is separate from the body part. The holding part is formed by holding elements which project in a flexible manner from the body part in the direction of its outer surface and whose free end has an inclined surface for supporting the body part on the rim or edge of the opening without play.

Abstract: A winged wall anchor having wings pivotally connected with a rivet and spring biased to an open position. The wings pivot about the rivet axis so that they can open parallel to the wall which allows the wings to open even when they are adjacent an obstacle and requires substantially less backspace.

Abstract: A mounting system, comprising an insertion component configured to be partially inserted into but not through a hole in a first panel of a wall assembly with an elongated anchor having a hub and at least one anchor tab. An elastic holding member is configured to connect the insertion component and the anchor and the anchor located on a first side of a first panel is configured to be inserted through the insertion component opening defining the hole in the first panel. The holding member pulls the insertion component and the anchor toward each other when the insertion component and the anchor are located on opposite sides of the first panel and separated by approximately a first panel thickness.

Abstract: This invention relates generally to the improved construction, assembly, and installation of a duplex toggle bolt used for securing an object by hanging or mounting to a support, and more particularly, to a duplex toggle bolt wherein the bolt shaft contains a fixed stop-spacer ring. This invention ensures a snug fit of the bolt between the wings of a spring nut fastener and a washer or stop spacer and head and the support structure and an attached object.

Abstract: The present invention relates to a toggle-bolt fastener for mounting various objects on a hollow mounting surface, the toggle bolt fastener having a single toggle piece, or clamping member, attached to one end of a spring, the other end of the spring attached to a hollow securing nut, the spring allowing the clamping member to be folded back and inserted into the securing nut for insertion of the fastener through the mounting surface.

Abstract: According to one embodiment, described herein is a wall anchor system includes an insert that is positionable within a hole in a wall. The wall anchor system further includes an anchor that is insertable into and passable through the insert. Additionally, the wall anchor system includes an elastic member that couples the insert and anchor. The insert and anchor remain coupled via the elastic member as the anchor is inserted into and passes through the insert.

Abstract: An anchor bolt assembly includes a sleeve affixed to a first plate member and having a locating groove extending around the inside wall thereof, a retaining member having a shank and a head provided with a retaining ring and movable in and out of the sleeve, a spring member adapted for forcing the retaining member out of the sleeve to a locking position to lock a second plate member to the first plate member and a pull cap connected to the distal end of the shank for pulling by the user to move the retaining member away from the locking position to an unlocking position where the second plate member is unlocked from the first plate member and the retaining ring is engaged with the locating groove to hold the retaining member in the unlocking position.

Abstract: A mounting mechanism is provided for securing an article to a wall. The mounting mechanism can include an insertion member, a base member, and a tab member. The insertion member has at least one hub formed thereon. The base member has a flange and at least one arm depending from the flange. The flange defines an insertion hole, and the at least one arm includes a guide. When the insertion member is provided in the insertion hole, the guide receives the at least one hub. The guide directs movement of the insertion member relative to the base member. The insertion member and the base member include a ratchet mechanism for maintaining the position of the insertion member relative to the base member. The ratchet mechanism can include a pawl formed on the at least one hub and at least one indentation provided on the guide. The pawl can interact with the at least one indentation. The tab member can be removably coupled to the insertion member.

Abstract: An arrangement for attaching a bar of a hand-held motor driven tool, such as a chain saw, to a body of the tool includes at least one first engagement device, a cover portion adapted to bear against a bar such that the bar is arranged between the cover portion and the body, and at least one second engagement device is adapted to engage the first engagement device for securing a bar between the cover portion and the body. The second engagement device is arranged to move a first distance along the first engagement device in a direction of the rotation axis of the second engagement device for securing a bar between the cover portion and the body. The second engagement device is captively attached to a spring biasing member having an undistorted position and a distorted position.

Abstract: The description is directed to a snap fastening for fast mounting of fittings such as socket wrench latches, swivel lever latches, hinge parts in openings in a thin wall, comprising a head part which is to be arranged on one, outer side of the thin wall and which overlaps the outer rim of the opening, and a body part which proceeds from the head part and projects through the opening in the mounted position, and holding elements which project from the body part and are flexible in direction of its outer surface, the free end of these holding elements being provided with a first inclined surface (run-in bevel) such that the holding element is pushed back in a spring-loaded manner by the opening edge and with a second inclined surface (stop bevel) for supporting the body part without play on the rim or edge of the opening of the other, inner side of the thin wall, which second inclined surface is substantially perpendicular to the first inclined surface.

Abstract: An anchoring device for insertion in a hole provided in a structure such as a wall (hollow or solid) comprises proximal and distal sections. The proximal section includes a head defining an aperture for receiving a fastener, and the distal section includes a pair of expandable wings displaceable between collapsed and expanded positions. Each wing is biased towards its expanded position such that the wings can engage the structural material delimiting the hole or a distal surface of the structure. The distal section comprises, proximally of the wings, a variable-length flexible portion for allowing the wings to engage the distal surface of the structure for various structure thicknesses. The distal section comprises, distally of the wings, a tip section adapted to spread outwardly when engaged by the fastener. The proximal section comprises a pair of legs each having a toothed rack for engaging the structural material.

Abstract: An improved toggle bolt assembly consisting of a toggle nut 100, collar 200, and screw 300, wherein the toggle nut 100 consists of an internally threaded cylindrical sleeve 110, a first winged member 120, and a second winged member 130. The cylindrical sleeve 110 of the toggle nut 100 engages with a collar 200, acting to center the assembly, hold the toggle nut 100 and collar 200 in place without engagement of the screw 300, and eliminate the need to apply tension to the screw 300 during installation.

Abstract: The invention relates to a fastening system (2), especially for a heat exchanger, which comprises at least three fastening units (6), substantially configured by screws (3) that are inserted through corresponding openings (8, 16) in a first structural component to be fastened on a second structural component. The fastening system is characterized in that exactly one fastening unit (6) is configured as a fixed hearing (6a) and the other fastening units (6) are configured as floating bearings (6b).

Abstract: A spring toggle includes an outer wing, an inner wing, a spring and a bolt. The outer and inner wings each include a limb, a clipping flange and two sidewalls. The limb has a proximal end, a distal end and two edges. The clipping flange is formed on the proximal end of the limb. The sidewalls are formed respectively on the edges of the limb. The spring is mounted in the inner and outer wings. The bolt is inserted through the spring, extends between the clipping flanges of the inner and outer wings and has an outer thread. The outer thread of the bolt is clipped by the clipping flanges when the inner and outer wings are expanded by the spring.

Abstract: A toggle assembly is provided for use with a fastener to engage a supportive structure. One or more teeth are positioned adjacent a lower peripheral edge of one or both of the toggle wing members. The teeth are oriented to engage a rearward surface of the supportive structure once the toggle assembly is passed through an opening formed in the supportive structure and the toggle assembly moves into an open position. One alternate embodiment provides inserts that may be selectively disclosed within recesses of the toggle wing members and provides one or more teeth for engagement with a rearward surface of a supportive structure to substantially prevent rotation of the toggle assembly while a fastener is passed therethrough and tightened.

Abstract: A toggle bolt fastener assembly comprises a tubular toggle housing body within which a coaxially disposed nut member is guidably moved in a translational manner. The nut member includes lug structure for preventing relative rotation or pivotal movement of the nut member with respect to the toggle housing body, and a pair of toggle wing members are pivotally mounted upon the nut member between radially contracted and radially expanded positions. A pair of compression sleeve members are also provided upon the toggle housing body for forcing the toggle wing members to their radially contracted positions, or for permitting the toggle wing members to move to their radially expanded positions depending upon the disposition of the nut member within the toggle housing body.

Abstract: The present invention generally provides an anchor for providing an attachment point on a surface. In one embodiment, the anchor includes a center shaft having a first member and a second member pivotally coupled thereto. The center shaft has an attachment end and a piercing end. The piecing end is driven through the surface allowing the first and second members to pass therethrough. Once through the surface, the first and second members rotate away from the center shaft to an open position, thus preventing the anchor from disengaging the roof. A collar may be slidably disposed on the center shaft. The collar may be slid against the surface to lock the members in the open position.

Abstract: A locking device and method for securing a cover as for a catch basin or manhole in position including two elongate members pivotally connected together end to end so as to be able to articulate. The members are held aligned while being inserted through a cover opening suspended in said opening on a flange on the upper member, the lower member then released to be angled by a spring force to wedge against sidewall and an edge of the cover opening. A bolt extending through the top threaded into a trunnion extending across an intermediate space of the lower member draws the lower member up to create a powerful wedging action to prevent cover removal. The bolt head is recessed into the flange and configured with a special shape engageable only with a special tool to be tamper resistant. A protective plastic cap covers the bolt head and has protrusions sheared off when the cap is removed to provide a tamper indication.

Abstract: A fastening device is disclosed, which has a slotted shaft, a toggling mechanism, which deploys from within the slotted shaft, and which is adapted to couple the slotted shaft to a supporting structure, a detent mechanism disposed about the slotted shaft to deter its rotation, and a tightening mechanism adapted to couple to the shaft. The tightening mechanism binds the fastening device securely in place.

Abstract: A mounting bracket comprises a plurality of spring-loaded dog assemblies for retaining a bezel to a ceiling or wall of a building structure without having to use external attachments. Each dog assembly has a dog tower which is molded to the rear the bezel. The dog tower has a spiral slot opening on one side which enables a dog member to be placed therein and rotated down or up within the dog tower to clamp to the material of the wall or ceiling. A notch is provided on the spiral slot opening to fix the dog member in a pre-mounting position. The dog member has a dog post that fits inside of the dog tower, where a clamping dog leg extends from the side of the dog post and has a bump that mates with the notch on the dog tower to fix the dog member in the pre-mounting condition. A coil spring is inserted inside the dog tower and between the dog post and a bottom of the dog tower.

Abstract: The present invention generally provides an anchor for providing an attachment point on a surface. In one embodiment, the anchor includes a center shaft having a first member and a second member pivotally coupled thereto. The center shaft has an attachment end and a piercing end. The piecing end is driven through the surface allowing the first and second members to pass therethrough. Once through the surface, the first and second members rotate away from the center shaft to an open position, thus preventing the anchor from disengaging the roof. A collar may be slidably disposed on the center shaft. The collar may be slid against the surface to lock the members in the open position.

Abstract: A fastening anchor assembly and manual method for fastening an object to a hollow wall. In most embodiments a generally U-shaped mounting strap of the assembly has a central bight and parallel first and second legs extending longitudinally from the bight through a first mounting hole in the wall. A strap foot portion or separate mounting flange extends perpendicularly to the legs for engaging the wall exterior side surface. One or two anchoring blades are operably pivotally coupled to the strap for swinging motion in a single plane defined by the longitudinal axes of the blades and strap and between a collapsed position nested adjacent the strap and a swung-out expanded position wherein the blade(s) clamp-engage the wall interior surface while the leg feet or flange clamp-engages the wall exterior surface. The position and orientation of the now wall-hidden blade remains visibly indicated to the installer by the orientation of the strap exposed to view of the installer.

Abstract: A fastener can be inserted into a narrow space behind a wall, and can be brought into contact with the back of the wall over a wide area to sufficiently reinforce the wall even when a bolt is tightened to securely fasten an object to the wall. The fastener has a block assembly including a plurality of blocks having two longitudinal ends and coupled together at the longitudinal ends in a single line. One of the blocks is formed with a threaded hole into which a bolt is adapted to be threaded and string holes. At least one string member is passed through the string holes. The block assembly has an arrangement for preventing each block from pivoting in a first direction from a straight position, in which the block assembly is arranged in a straight line, and allowing each block to pivot in a second direction opposite to the first direction from the straight position.

Abstract: A fastener for multiple layers having alignable apertures therethrough. The fastener includes a first head, a second head, and a connector. The first head passes through the alignable apertures in the multiple layers and snugs against a first extreme outermost layer of the multiple layers. The second head opposes the first head and snugs against the other extreme outermost layer of the multiple layers. The connector connects the first head to the second head and is disposed in the alignable apertures in the multiple layers and maintains the first head snugly against the first extreme outermost layer of the multiple layers and the second head snugly against the second extreme outermost layer of the multiple layers and thereby retains the multiple layers between the first head and the second head.

Abstract: A repair device which is used to restore planarity to concave damage in a drywall board, which is quickly installed by chucking to a reversible power driver in the manner of a drill bit, thus creating its own hole. The device is inserted into the wall cavity, then powered in the reverse direction to actuate in the manner of a jack to push out a damaged drywall piece, which is still hingedly attached by the cardboard facing. Thus united, the cracks are bonded with cement, while the inexpensive device remains inside the wall, acting as a permanent prop.

Abstract: This invention is a wall fastener to join abutting surfaces such as affixing a bracket to a wall. The L-shape arms of the fastener are attached with hinges to a shell or to a slidable nut enclosed in a shell which is inserted in a preformed hole or aperture in the wall. The fastener with arms attached to the slidable nut is adjustable for use with walls of varying widths. A screw holding the object to be attached is inserted in the shell and threaded through the nut (FIG. 4). The screw then engages the arms of the fastener and forces them to pivot into a clamping position (FIG. 5). The screw is turned until the arms are clamped against the wall (FIG. 6). The fastener with the arms attached to the shell is similar in operation to the adjustable fastener except its use is for walls or surfaces of the same width as the device.

Abstract: A locking bolt for helping make connections between beams and columns of a building under construction includes an elongated body having a rear threaded section. This threaded section connects with a smooth toggle section having a rounded front end. An inverted L-shaped slot in the toggle section includes a deep front recess that connects with a shallow rear recess. A toggle bar is carried in the slot by a pivot pin that extends loosely through an opening in a base of the toggle bar. Connecting with the toggle base is a rearward extending locking arm. When the toggle bar locking arm seats in the slot, the front end of locking bolt may readily pass through bolt holes in a beam and a web of an adjoining column. Once the toggle bar is clear of the column web, the toggle bar locking arm is free swing from the slot and into a locking mode where held by interference fits between edge segments of the toggle bar base and walls of the slot deep recess.

Abstract: A toggle member comprising an elongated cylindrical tube having a slot from one end to approximately the center of the tube, defining an opening and channel to receive a fastening bolt; a pivoting threaded bolt engaging with a round ball, the ball threaded to engage the bolt, the ball acting as a pivotally mounted system to allow the bolt to pivot in a manner relocating itself inside and parallel with the tube, said ball being attached to an elastomeric spring bias material tongue fixably seated within the tube so as to exert a spring bias in a direction to force the bolt perpendicular to the tube. The toggle member is meant to be used with a threaded bolt or screw. The elastomeric spring being thinner in the direction facing the bolt entrance allows the bolt to swivel or pivot parallel and into the tube.

Abstract: A device for grounded securing of an element (1) at a hole (9) in a metal plate (10) comprises members (6, 13) movable on both sides of the plate towards each other and the plate for securing the element to the plate and means (12) adapted to establish an electrical connection between the metal of the plate and the element, These means (12) are arranged to enter into radial abutment on the circumferential wall (27) of the hole while establishing said electrical connection.

Abstract: A house is anchored to the ground by extending a plurality of metal rods from anchors buried in a foundation to the upper framework of the house and clamping the house to each rod by a pair of spaced clamps, which includes a washer in each device around the rod jammed at an angle against the rod so as to be immovable in the tensile direction between the spaced clamps. The lower clamp is threaded onto the buried threaded anchor extending through the sole plate. A bolt extends through at least one top plate of an outer wall adjacent at least the outer corners of a building and threads into the upper clamp beneath the top plate.

Abstract: This invention most generally relates to a clip mechanism assembleable to the back-side of an ornament member, most preferably jewelry objects or fanciful buttons and the like, to be displayed by removable attachment to clothing mainly through "button-holes" and used, for example, as tuxedo-studs, cuff-links, lapel-pins, etc. The clip mechanism may also be used with hooks or posts upon which may be placed, or hung, tools, pictures, or articles for display. The clip mechanism is removably insertable into a mounting hole or peg-board hole and because of the particular design of the clip mechanism will support the article hung on the hook or post. The clip mechanism is removable with a pulling force in a direction opposite the direction of insertion of the mechanism.

Abstract: A fastener is provided which is particularly suited for joining two or more panel members together, such as a circuit board with the internal support chassis of an electrical enclosure or casing. The fastener is configured with a compliant lower portion, such that the fastener can be installed and secured with a simple push-through action which requires only a moderate force. Because assembly of the fastener does not require a rotational motion, assembly costs for automated assembly operations are reduced, while physical demands on an assembler are significantly reduced for manual assembly operations. The fastener is reusable, in that the fastener can be readily removed without being plastically deformed.

Abstract: An anchor assembly for retaining an elongated fastener member within an opening defined by a support wall having at least one concealed side. At least two elongated wire-like legs are positioned in parallel relation and a threaded apertured anchor member is slidably movable along the wire-like leg members and adapted to assume a first position parallel to the legs when the legs are in a first orientation and a second position generally perpendicular to the legs when the position of the legs is rotated to a second position. A connecting member in the form of a collar is attached to the proximal ends of the legs and is configured and dimensioned for positioning within the opening of the support member.

Abstract: The present invention is in the field of anchor bolt assemblies which are used as wall or ceiling mounts. The present invention includes a shaft with opposite first and second ends formed as a body and a neck joined at a shoulder. The body has a cross-section that is sized for close fitting insertion in the wall or ceiling. The neck extends longitudinally of the body to terminate in a second end. The neck cross-section is formed to have a longitudinal recess. The device also includes engagement means on the shaft for engaging a mounting element. A cross-piece having first and second arms is attached by hinge means to the shaft. The cross-piece is sized to fit within the longitudinal recess when the device is installed in the wall. Upon installation, the cross-piece snaps out of the recess and braces against the back of the wall or ceiling. The shaft maybe threaded or ratcheted.

Abstract: A tubular and preferably elastomeric radial holding and centering expandable bushing having a bore sized to pass a threaded shank of a fastening bolt and having a radially enlarged flanged one end thereof. The bore tapering outwardly toward the periphery to create a conical cavity between the bushing body from the flange rearwardly. The cavity receives a tubular expansion insert having a tapered periphery and internal bore slightly larger than the diameter of the threaded shank of the fastening bolt which insert is positioned to the side of the tubular bushing remote from the head of said fastening bolt. A folding wing nut structure includes a trunion nut having a tapped bore threaded on said shank of the bolt, axially outwardly of the tubular expansion insert to the side opposite to the tubular bushing. The structure includes a pair of foldable wings.