Abstract: A wheel nut and washer assembly for securing a wheel to a motor vehicle axle. The wheel nut includes a body having a longitudinal axis, the nut body also having an axial threaded aperture and a pair of ends, one end being in the form of a smooth steel external surface. The wheel nut also includes a steel washer having an end terminating in a smooth annular surface in surface-to-surface engagement with the body end thereby maintaining axially alignment of the body and washer enabling relative movement of said body and washer about said axis. A decorative cap on the assembly is configured so that it holds the washer on the nut, a gap between the cap and washer to enable the washer to freely rotate and move laterally relative to the nut.

Abstract: A captivated fastener assembly is provided along with a technique for captivating a fastener in a workpiece. The assembly includes a fastener having a head, a shank extending from said head that has an upper unthreaded shank portion and a lower threaded shank portion, wherein the diameter of the outer tips of the threads of the lower threaded shank portion exceed the diameter of the upper unthreaded shank portion. The assembly further includes a workpiece having a sleeve with an internal bore with a diameter slightly larger than the diameter of the fastener shank so that the sleeve can be received over the shank. The sleeve also includes segments that deform inwardly in response to a predetermined compressive force, thereby forming a plurality of deformed segments that protrude inwardly. Thus, the plurality of deformed segments provide an inner diameter that is less than the diameter of the outer tips of the threads of the lower threaded shank portion, thereby holding the fastener captive.

Abstract: A threaded fastener has a bolt, a nut including at least one sleeve in which the bolt is threadingly engaged, and a washer having a lower bearing surface adapted to bank on a surface of one of at least two elements to be connected with one another by the threaded fastener, the washer being pressed-fit on a part of the threaded fastener, so that when an active force and an opposite reactive force are applied to parts of the threaded fastener, the washer does not turn, while the bolt also does not turn but moves only in an axial direction.

Abstract: The present invention is a washer typically used in fastening insulation to a roof deck. The washer is secured to the deck by a securing member received through an opening in the washer. The washer is provided with a body having a top surface, a thickness dimension, and bottom surface having a substantially planar region. The body is further provided with an opening sized to permit a securing member to pass therethrough. A plurality of fingers are positioned around the opening on the bottom surface of the body. The fingers extend away from the bottom surface, the fingers being positioned around the opening and having at least a portion that extends over the opening. In yet another embodiment, the present invention is, in combination, a washer and a securing member received in an opening provided in the washer.

Abstract: The invention relates to a fixing element (1) for fixing insulation and scaling tracks on a fixed substructure. Said element comprises a screw (9) and a large washer (7) with a cylindrical extension (8). The screw (9) has two thread segments (13, 14), wherein one thread segment (13) interacts with the through hole in a reciprocal thread engagement located in a narrowed area (12) of the cylindrical extension (8). An axial relative movement of both parts can be achieved by reciprocally rotating the cylindrical extension (8) and the screw (9).

Abstract: With the object of obtaining a reliable grounding of the antenna, even if the panel of the vehicle is deformed or the elasticity of the base pad or O-ring weakens, a washer portion 21 is integrally secured to a nut portion 20 via a wave washer 22. This securing is performed by mounting a joint portion 23 in washer portion 21, and by mating protuberances 23e of second protruding pieces 23d of joint portion 23 with a ring-shaped groove portion 20b that is formed inside a first through-hole 20a of nut portion 20. Even if the vehicle panel the antenna is mounted, and so forth, is deformed, or the stress on the antenna-mounting nut 6 weakens, this change is absorbed by wave washer 22, and thus a marked reduction in the press-contacting force of the antenna-mounting nut 6 does not occur, and the grounding of same is made reliable.

Abstract: A combination nut and washer is retained in a preassembled position by an annular pilot that extends toward the central hole in the washer to permit the washer to be rotated 360° with respect to the nut. The lower end of the pilot has a groove. A split ring is mounted in the groove to retain the washer in its preassembled position with respect to the nut.

Abstract: A detachable close-tolerance connection unit for a component includes a fitting screw including a head, a shank, a threaded portion and a fitting portion. The shank includes a rim element. A supporting ring includes an opening and a narrowing element being located in the opening. The inner diameter of the narrowing element is less than the outer diameter of the rim element. The supporting ring is connectable to the fitting screw with elastic-plastic deformation to reach a pre-assembled position. The narrowing element in the pre-assembled position is located in a portion of the opening facing the head of the fitting screw. The narrowing element in the pre-assembled position is associated with the rim element such that the supporting ring is rotatably and captively connected to the fitting screw. The rim element in the pre-assembled position is located inside of the opening.

Abstract: A bolt (10) with a partially threaded shank has a plurality of locking grooves located on the shank between the thread and its head (11). The bolt (10) is inserted through a component stack and spacing washers and a stepped reaction washer such that at least half of the locking grooves (13) are left exposed. A deformable frusto-conical locking ring (17) is positioned on a nut (15) having a circular receiving cavity on one end. The nut (15) and locking ring (17) are positioned on the thread (14) of the bolt (10) and tightened so that the locking ring (17) is deformed from a frusto-conical shape to a substantially flat disc such that its bore diameter is reduced, thereby retaining it within one of the locking grooves (13). The outer diameter of the receiving cavity (16) abuts the stepped reaction washer (18).

Abstract: A fastener assembly for a wheel of a vehicle includes a screw element including a threaded portion, a first supporting surface and a number of first wedge shaped teeth being located at the supporting surface. A supporting element is rotatably connected to the screw element. The supporting element includes a second supporting surface and a number of second wedge shaped teeth being associated with the first wedge shaped teeth. The first wedge shaped teeth are located at the first supporting surface to face the supporting element and the second wedge shaped teeth are located at the second supporting surface to face the screw element.

Abstract: An assembly of a threaded fastener and a stemmed washer is provided, such as for applications in which a standoff is desired between a washer and a mating threaded fastener. The stemmed washer includes a washer portion and a standoff portion extending from the washer portion. The threaded fastener has a retaining structure extending about the washer portion and capturing the washer structure in an assembly with the threaded fastener. For example, the retaining structure may have a washer receptacle for the washer portion. The washer portion is captured in the washer receptacle by a deformed catch section below the washer portion.

Abstract: An assembly of an internally threaded fastener and a stemmed washer is provided, such as for applications in which a standoff is desired between a washer and a mating externally threaded fastener. The stemmed washer includes a washer portion, a retaining portion and a standoff portion. The retaining portion interfaces with the internally threaded fastener to retain the fastener in the assembly. The stemmed washer may include a skirt which is plastically deformed to capture the fastener. The fastener may include a skirt which similarly plastically to mate with a retaining lip on the stemmed washer. The fastener and washer may be secured in the assembly to permit relative rotation of the fastener with respect to the washer.

Abstract: The body bolt absorber assembly includes a lower body absorber made from rubber or a similar material with an undersized aperture, formed either during manufacture or by subsequent piercing, to slideably engage and capture a bolt. The lower body absorber further includes interior cylindrical walls with an inwardly extending lip thereby forming a chamber to engage and capture a washer. The washer includes an aperture through which the shaft of the bolt passes. The engagement and capture of the bolt and the washer provides for a one-piece modular assembly.

Abstract: A washer element for a wheel bolt and/or a wheel nut of a motor vehicle wheel is mounted with one end partially in a rounded cavity of a mounting hole for the wheel and the wheel bolt is supported on the other end of the element. The washer element consists of a sleeve part with an end area formed so that it is rounded, whereby in cross section the sleeve part itself has a profiled wall with a sleeve expansion and/or a sleeve contraction.

Abstract: A threaded fastener has a bolt; a nut including at least one sleeve in which the bolt is threadingly engaged, and a washer having a lower bearing surface adapted to bank on a surface of one of at least two elements to be connected with one another by the threaded fastener, the washer having a smooth inner surface and being press-fit with the smooth inner surface on a smooth outer surface of a part of the threaded fastener, so that when an active force and an opposite reactive force are applied to parts of the threaded fastener, the washer does not turn, while the bolt also does not turn but moves only in an axial direction.

Abstract: With the object of obtaining a reliable grounding of the antenna, even if the panel of the vehicle is deformed or the elasticity of the base pad or O-ring weakens, a washer portion 21 is integrally secured to a nut portion 20 via a wave washer 22. This securing is performed by mounting a joint portion 23 in washer portion 21, and by mating protuberances 23e of second protruding pieces 23d of joint portion 23 with a ring-shaped groove portion 20b that is formed inside a first through-hole 20a of nut portion 20. Even if the vehicle panel the antenna is mounted, and so forth, is deformed, or the stress on the antenna-mounting nut 6 weakens, this change is absorbed by wave washer 22, and thus a marked reduction in the press-contacting force of the antenna-mounting nut 6 does not occur, and the grounding of same is made reliable.

Abstract: The body bolt absorber assembly includes a lower body absorber made from rubber or a similar material with an undersized aperture, formed either during manufacture or by subsequent piercing, to slideably engage and capture a bolt. The lower body absorber further includes interior cylindrical walls with an inwardly extending lip thereby forming a chamber to engage and capture a washer. The washer includes an aperture through which the shaft of the bolt passes. The engagement and capture of the bolt and the washer provides for a one-piece modular assembly.

Abstract: A fastener assembly includes (a) a fastening member that includes an out-of-round portion centered about a longitudinal axis and configured for engagement with a torque-transmitting tool, a frustoconical load-bearing surface that extends radially outwardly from the longitudinal axis, and a threaded portion that is centered about the longitudinal axis; (b) a metallic, frustoconical thrust washer having a concave surface positioned adjacent to the load-bearing surface of the fastening member, and a convex surface; and (c) a pressure ring that includes a flange, a frustoconical load-bearing surface formed by the flange and positioned adjacent to the convex surface of the thrust washer, and a frustoconical undersurface oriented to contact a complementary depression in a workpiece.

Abstract: The present invention concerns a nut (1) with a nut body (10) having an enlarged shoulder (15) and a turning plate (20) that is rotationally and inseparably arranged on the nut body, wherein the turning plate is shoved onto the nut body and secured by means of a locking element. According to the invention, the locking element is fashioned as a bead (26) provided on the nut body (10), so that the turning plate (20) is arranged between the enlarged shoulder (15) and the bead (26). Moreover, the present invention concerns a method for fabrication of such a nut, wherein the nut body (10) and the turning plate (20) are made by massive forming and, before or after shoving on the turning plate (20), an upsetting (26) is formed by pressing in the nut body (10), or during the fabrication of the nut body (10) a bead (26) is formed as a single piece in the nut body, so that the turning plate (20) is positioned between the enlarged shoulder (16) and the upsetting or the bead (26).

Abstract: The body bolt absorber assembly includes a lower body absorber made from rubber or a similar material with an undersized aperture, formed either during manufacture or by subsequent piercing, to slideably engage and capture a bolt. The lower body absorber further includes interior cylindrical walls with an inwardly extending lip thereby forming a chamber to engage and capture a washer. The washer includes an aperture through which the shaft of the bolt passes. The engagement and capture of the bolt and the washer provides for a one-piece modular assembly.

Abstract: A fastener for securing insulation panels to a structural substrate. The fastener comprising an integral cover and a brim connected to a funnel terminating in a hole. The hole allows a screw to pass through so as to connect the fastener to the structural substrate. The cover in the closed position creates a reservoir which facilitates bonding of the fastener to a surface coating applied over the fastener. The funnel has at least one hole which secures the fastener to the insulation panels and helps prevent rotation of the fastener.

Abstract: A flexible disk for securely holding insulation to an air duct made from a resilient material, and having a convex upper surface and a diameter of from 1.5 inches to 4.0 inches. A washer for receiving a disk fastener is centrally positioned in the disk top, which is thicker than the top. A rim is located at the circumference of the top which has a planar bottom for contacting the insulation. When the disk is properly attached to an air duct by a fastener, it deforms to a concave configuration by which it resiliently exerts force on the underside surface of the disk and the rim which in turn presses downward on the insulation, securely holding the insulation in place without crushing the insulation.

Abstract: A ball and socket misalignment coupling includes a socket flange, ball member, retaining flange, threaded studs, and threaded retaining rings of limited shear strength. The threaded retaining rings function to permit the coupling to be pre-assembled. When the pre-assembled coupling is installed into service by using the threaded studs and associated nuts to bolt the coupling to a standard flange, the threaded rings are stripped out and remain in the assembly without obstructing the function of the coupling. The threaded retaining rings fit into recesses in the flanges through which the studs insert. The threaded retaining rings may made as a single-piece construction made from a material that has a yield and shear strength lower than that of the threaded studs about which they are mounted, or may be made as a two-piece threaded ring having inner threaded portion and a separate outer portion, each with differing material construction.

Abstract: An attachment implement, for use in connection with the mounting of a relatively thin, highly dense insulation panel upon an underlying structural substrate, comprises a washer plate portion and an integral lower body portion which has a substantially inverted dome-shaped or bell-shaped configuration. The axial depth dimension of the implement is relatively shallow or small, and the inverted dome-shaped or bell-shaped configuration advantageously distributes or disperses the compressive forces attendant the mounting of the insulation panel upon the underlying structural substrate whereby desired compression of the insulation panel, and its rigidifying or strength-enhancing membrane, occurs without tearing or cutting of the insulation panel and its membrane so as not to adversely affect the strength, rigidity, and structural integrity of the insulation panel.

Abstract: A sealing disk which is provided with a contour with which a contour or a face of a component on which the disk is to be disposed, is associated in complementary fashion. For premounting of the disk fixed on the component, the disk has a securing part, which is deformed for assembly and is deformed into an undercut or recess.

Abstract: Conductive devices and tools to provide electrical conduction with a generally planar conductor which is covered with an insulation substance such as paint, rust or dust, by scraping a portion of the conductor and removing the insulation substance. A conductive device includes a conductive metal serration means and a tool utilizes such a serration device. Such a serration device can be a bolt device, nut device or washer device, or washer-incorporated threaded device. A connector device is also disclosed to provide electrical conduction between a conductor and a conductor plate covered with an insulation substance.

Abstract: A conductor piercing washer device for a fastening member for making electrical contact with the conducting wires without having to strip the wires. The conductor piercing washer device for a fastening member includes a fastening member having a shaft portion and a head portion; and also includes a washer member being removably mounted about the shaft portion of the fastening member; and further includes a washer stopper member being securely attached about the shaft portion of the fastening member and being spaced from the head portion of the fastening member.

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 fastening device (20), for use in holding a base plate down to a railway sleeper. The device is of the type having a head portion (21), a screw-threaded shank portion (22) and an intermediate portion (23) connecting the head portion (21) to the screw-threaded shank portion (22), with the intermediate portion (23) and the screw-threaded shank portion (22) being of smaller diameter than the head portion (21).

Abstract: A screw-sleeve element has a screw having a screw shaft and a threaded region formed so that the screw shaft has a smaller diameter than an outer diameter of the threaded region; and a sleeve provided at an inner side with a narrow location having a diameter which is smaller than the outer diameter of the threaded region of the screw, so that the sleeve is non releasably arranged on the screw.

Abstract: The present invention is a roofing fastener assembly. The assembly includes a fastener, a barbed washer, and a screw. The screw projects through the fastener and exits the free end of the fastener. Upon installation of the screw and fastener, the barbs of the washer penetrate into the roof membrane and insulation layer. An extending rim on the washer receives the head of the fastener to resist the relative lateral movement of the washer and fastener. Stabilizing fingers project from a free end of the fastener and hold the screw in place during assembly.

Abstract: An at least partially bioabsorbable surgical fastener or device formed in the shape of a screw and washer system and the methods for manufacturing and using the same. The surgical fastener is particularly but not solely intended to be used to attach rotator cuff tendons to bone.

Abstract: The shelf support assembly includes an integral disk and shank with an aperture through the longitudinal axis thereof. A screw passes through the aperture. Flexible arms are formed around an opening in the disk formed by the aperture. The flexible arms engage the threads of screw during a pre-assembled position. However, the flexible arms deflect in response to axial urging of the screw thereby allowing the screw to move axially during the initial insertion of the screw into the pre-assembled position. This deflection further occurs in response to subsequent axial adjustment of the screw prior to installation, in response to the dropping of the shelf support assembly in the pre-assembled position thereby allowing the flexible arms to absorb a portion of the energy of the fall, and in response to the installation of the shelf support assembly into the mounting panel.

Abstract: A membrane plate for attaching a lower membrane and an adjacent upper membrane overlapping the lower membrane to a roof is provided where the membrane plate includes a plate body having a top surface and a bottom surface, the top surface adapted to seat against the upper membrane, the bottom surface adapted to seat against the lower membrane, the top surface and the bottom surface separated by at least one wall generally perpendicular to the top surface and the bottom surface, the plate body having a generally centrally located aperture to permit a fastening device to pass through for securing the membrane plate and the membrane to the roof The membrane plate further includes holes in the plate body at least partially located in the generally perpendicular wall to permit air to flow between the top surface to bottom surface of the plate, whereby the holes permits a bubble of air created during the securing of the upper membrane to the lower membranes to the roof by an adhesive, to dissipate through the membra

Abstract: A fastening element for securing plate-shaped insulation materials and including a large-surface, flat clamping member (2), a hollow stem (3) projecting from the clamping member (2) and enclosing a hollow space (4) that opens into an opening (6) formed in the clamping member (2), and at least one plate-shaped cover (7, 8) for closing the opening (6) attached to the clamping member (2) and including a substantially linear flexor (9) provided in an immediate vicinity of the opening (6) formed in the clamping member and spatially bent in such a way that it extends in a plane (V) inclined to a plane (E) defined by the clamping member (2) and to a plane (A) extending parallel to an axis of the hollow stem (3).

Abstract: A fastener is disclosed for sealed engagement with a workpiece. The fastener has a head having a lower face, and a shank extends from the lower surface of the head. A groove is formed in the lower surface, the groove having an inner wall and an outer wall. The inner wall has a proximal end which is adjacent the lower surface of the head and which is disposed radially remotely from the shank. A sealing element, such as an O-ring, is disposed at least partially within the groove. The groove may be configured so that a distal end of the inner wall is near to the axis of the shank than is the proximal end of the inner wall.

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

Abstract: A free-running-on, locking-off and tension directly indicated locking nut, capable of indicating whether the locking nut is suitably tightened with the required axial tension and preventing the locking nut from becoming loose, includes a body portion formed with a base and a conical seat portion extending upwardly from a central portion of a top of the base, the seat portion having an upper end formed with a vertical outer wall surface, the body portion having an axial hole extending through the body portion and provided with internal threads, and a cap having an axial through taper hole which is smaller than the concial seat portion in height. The axial through taper hole is formed with a conical surface with a large diameter at a bottom thereof, a neck with a vertical surface extending upwardly from a top of the conical surface, and a chamfer extending upwardly outwardly from a top of the neck to form a countersink, the conical surface being configured to fit over the conical seat portion.

Abstract: In a fastening element (1) for fastening insulating sheets and if necessary sealing sheets to a solid base there are provided a screw (5) and a large-surface washer (6), wherein the screw (5) has a drilling point (7), a screw shank (9) provided at least partly with a threaded region (8) as well as a screw head (10). The washer has a central hole (21) for introducing the screw shank. A tubular extension (20) aligned axially parallel to the screw shank (9) to be inserted adjoins the central hole (21) in the washer (6). Sections or parts of this extension (20) engage by plastic deformation in the threaded region (8) of the screw shank (9) to achieve preassembled retention of the washer (6) and screw (5).

Abstract: A sealing ring having a base body manufactured of thermoplastic synthetic resin material and a sealing body of elastomeric synthetic resin material. The two bodies are molded permanently on one another and each possess a sealing section, which serves for producing a sealing action at sealing faces of two oppositely placed components which are to be sealed in relation to each other.

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

Abstract: A wheel bolt for a a vehicle wheel has a shaft with a torque applying head and a threaded section. A rotatable supporting ring is disposed between the head and threaded section, which supporting ring has a spherical construction with a contact area for contacting a vehicle wheel. The supporting ring is non-rotatably held on the shaft in a ring groove by way of at least one caulking.

Abstract: A wheelnut for securing a wheel to a motor vehicle axle. The wheelnut includes a body having a longitudinal axis, the nut body also having an axial threaded aperture and a pair of ends, one end being in the form of a conical external surface and the other end has wrench flats facilitating the application of torque forces through the wrench flats to the nut body. The wheel has a nut seat surface configured to receive the conical external surface in surface-to-surface engagement, so that a clamping force of increasing magnitude will be applied to the wheel at the seat in response to the application of torque force on the wheel nut.

Abstract: A threaded fastener for securing workpieces with a determinable desired clamp load and including a nut assembly and a bolt with the nut assembly including a nut member with a lock base having a load ring portion and a boss portion with the boss portion adapted to be located in a retention counterbore in the nut member and being of a length to provide a gap between the load ring portion and nut and at a predetermined load to collapse and close the gap and be deformed radially into compressive engagement with the threads of the bolt to provide prevailing torque type lock structure resisting loosening of the nut assembly from the bolt with the predetermined collapse load providing the desired clamp load and with the gap closure visibly indicating attainment of the desired clamp load.

Abstract: An electrical terminal clamping assembly of the character that will simultaneously accommodate and securely grip one or more conductor wires of substantially different diameters. The assembly includes a threaded terminal screw and a uniquely configured generally circular shaped clamping plate or tilt washer which is adapted to freely tilt relative to the undersurface of the head of the terminal screw in a manner to move gripping projections provided on the undersurface of the washer into secure clamping engagement with a wire of large diameter disposed on one side of the axial center line of the terminal screw and into secure clamping engagement with a wire of much smaller diameter disposed on the opposite side of the axial center line.

Abstract: An improved capped wheelnut of the type including a nut body having a central threaded aperture and a pair of ends, one end being adapted to engage a wheel, and a cap for said nut body at the other end. The cap has an end wall and a continuous side wall which terminates intermediate the ends of said nut body in an annular edge, an insulating washer constructed of material having low heat conductivity, said washer being of annular ring shape and positioned on said nut adjacent the lower end of said cap, a portion of said cap being engaged with said washer so as to maintain said washer in engagement with said nut body so that it will not fall off the nut.

Abstract: In a method for making an assembly unit from an assembly bolt (3) that has a bolt head (9) and a shaft (6) and from a sleeve that has an axially movable annular collar (11) toward the head that surrounds a partial axial region of the shaft, first the shaft that has a counterpart back-engagement part is introduced into the sleeve, and then at least one back-engagement part on the sleeve is created by means of a stamping oriented essentially inward from the outer jacket face. The stamping has an action that is oriented radially inward and an action oriented toward the bolt head (9). In the stamping, a counterholder presses against the bearing face (22) of the annular collar (11) oriented toward the bolt head (9).

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

Abstract: A wedge lock fastener assembly includes a threaded nut having a peripheral flange, a wedge lock end face, and plural wrench-receiving notches in said flange. An associated washer has a peripheral skirt encircling the nut flange, a wedge lock face, and plural tabs extending angularly from the skirt across the peripheral flange so that the washer is captively retained on the nut. Peripheral notches in the washer are adapted to align with the notches in the nut, such that a special wrench can be extended into the aligned notches for loosening the nut and washer as a unit.

Abstract: A fastening device to be installed in areas having limited access. A washer is formed with an integral extension, and a nut is bonded to the washer. The device is installed onto a fastener by manipulating the extension. After the nut is tightened onto the fastener, the extension is detached from the washer by being bent along a score is formed between the extension and the washer.