Abstract: A fastener assembly includes an insert and a base. The insert has a first plurality of teeth. The base defines a cavity to receive the insert and includes a second plurality of teeth to engage with the first plurality of teeth.

Abstract: A fastening assembly for a top-mounted faucet that allows quick and easy installation of the faucet. The fastening assembly includes a plate and a threaded nut. The plate includes an upper grip member made of soft gripping material and a lower support member made of a rigid material. The plate has an elongated central aperture passing through the upper grip member and lower support member. The lower support member includes two flanges that clamp to opposite two faces of the threaded nut.

Abstract: A laundry appliance includes a basement housing comprising a capacitor receiver. A capacitor is disposed within the capacitor receiver to define a secured position. The capacitor receiver includes at least one retaining flange that is coupled to the basement housing via a living hinge. At least one retaining flange is outwardly biased away from a body of the capacitor when the capacitor is placed in an inserted position. At least one retaining flange includes a thread-engaging surface that operates to the secured position upon rotation of the capacitor in the inserted position.

Abstract: A fastener includes a shank having a first end and a second end defining a length. The fastener includes a thread provided on the shank, the thread including a first region adjacent to the first end and a second region between the first region and a head at the second end, the thread includes a leading edge and a trailing edge, each edge forming an angle with a surface of the shank, the leading edge forming a non-normal angle with the surface of the shank and the trailing edge forming an angle about normal to the surface of the shank. The fastener may include an arcuate detent region in the shank between respective turns of the thread, the detent region having a length, the length decreasing from the first end toward the second end between the respective turns. The fastener may include a plurality of flutes positioned along a length of the shank.

Abstract: A nut has two parts, each having a section of an internal thread which is radially slidable onto an external thread. The nut parts have cooperating connecting elements which permit relative displacement in a direction extending radially with respect to the axis of the internal thread until reaching a use position in which the internal thread of the nut engages around the external thread with a small clearance. The connecting elements have guide surfaces which guide the nut parts in a rotational movement about an axis of rotation extending transversely to the axis of the internal thread when displaced into the use position. Each nut part has at least one first locking arm which has on one side a guide surface which induces the rotational movement when the nut parts are displaced and bears against a complementary guide surface on a second locking arm of the other nut part.

Abstract: An anchor assembly is disclosed for suspending objects to a concrete structure. The assembly includes an anchor housing having a jaw assembly therein and a opening for receiving an anchor member such as a threaded rod. The jaw assembly includes threaded rods having a threaded opening, a wood form anchor assembly and a metal decking anchor assembly. The wood form and the metal decking anchor assemblies may accommodate the anchor housing and the anchor housing is used in one of the wood form anchor assembly and the metal decking anchor assembly. The metal decking anchor assembly includes a nose-piece and the anchor housing is selectively connectable to the nose-piece via a locking connection such as a bayonet connection.

Abstract: Angled coupling including main pass-through coupler to allow first threaded rod to pass therethrough and second coupling extending at angle therefrom to receive second threaded rod. Angled coupling can be used for multiple purposes including, but not limited to, adjusting location of threaded rod, seismic restraints, storm surge restraints and/or providing additional mounting points for support members. Main coupler is configured to be secured to any location on first threaded rod without requiring it to be screwed onto first threaded rod. Main coupler may include first half and second half each traversing length thereof, that can be secured together at desired location on first threaded rod. Main coupler may include upper section having first approximately half of body thereof and corresponding threads and lower section having second approximately half of body (opposite first half) and corresponding threads. Angled coupling is made of high strength material (e.g., steel, cast iron, composites).

Abstract: A faucet fixation system includes a fastener configured to couple to a faucet, and a connector. The connector includes a base and a nut assembly. The base includes a bore. The nut assembly is disposed in the bore around a portion of the fastener, and includes a first locking member, which has a first threaded portion and a first actuating portion, and a second locking member, which has a second threaded portion and a second actuating portion. In a locking position of the connector, the first and second threaded portions engage threads of the fastener to prohibit relative translational movement between the connector and the fastener while allowing the connector to rotate along the threads of the fastener. In a non-locking position of the connector, the first and second threaded portions disengage the threads of the fastener to allow translational movement of the connector relative to the fastener.

Abstract: A quick-locking male connector includes: an inner contact; an insulator; an outer contact; a spring basket with a plurality of spring fingers; an elastic claw with at least radially-inward one tooth and a radially-outward nub; a connector body attached to the outer contact; and a coupling nut having at least one radially-inward extending nub. The coupling nut is movable between a rear unsecured position, in which the nub of the coupling nut is rearward of the nub of the claw, and a forward secured condition, in which the nub of the coupling nut engages the nub of the claw and forces the at least one tooth of the claw radially inward to engage with a thread of an outer conductor body of a mating female connector. The spring fingers of the spring basket apply radially-outward pressure to the outer conductor body of the mating female connector.

Abstract: The present disclosure describes an anchor device for receiving and securing a shaft thereto. The device includes an outer housing within which a jaw assembly is secured. The outer housing of the device may in turn be secured to or within a support structure such as a building component. Jaw components of the jaw assembly may be threaded. Furthermore, the jaw assembly has at least two configurations. In a first configuration, at least one jaw component is positioned away from a central shaft axis against the biasing force of a biasing member. A removable or reconfigurable holding member or stop member selectively secures the at least one jaw component in this position. A second configuration is the result of the holding member being reconfigured by the inserted shaft. The shaft triggers movement of the at least one jaw component toward the central shaft axis and into contact with the shaft.

Abstract: An apparatus includes a body, a shaft assembly, an articulation section, an end effector, an articulation connector, and an articulation drive assembly. The shaft assembly extends distally from the body. The end effector is connected to the articulation section such that the end effector is configured to deflect relative to the longitudinal axis of the shaft assembly. The articulation connector is configured to translate relative to the shaft assembly to deflect the end effector relative to the longitudinal axis. The articulation drive assembly is configured to translate the articulation connector relative to the shaft assembly. The articulation drive assembly includes a rotatable housing and a first lead screw assembly. The first lead screw assembly includes a first half and a second half. The first lead screw assembly is slidably coupled with the shaft assembly and is configured to translate in response to rotation of the rotatable housing.

Abstract: An actuator includes a housing, a first nut in the housing, a second nut in the housing, and a threaded spindle screwed into the first nut and the second nut. The first nut exerts a first force in a first direction on the threaded spindle, and the second nut exerts a second force in a second direction on the threaded spindle, the first direction being different than the second direction.

Abstract: A piston ring for an internal-combustion engine may include a body having a substantially annular external surface and a physical vapor deposition coating layer disposed on the external surface. The body may include a gap defined between a first end and a second end. The piston ring may also include a first half in a region of the gap and a second half opposite the first half. The coating layer of the first half may have a thickness gradient, and the coating layer may define a greater thickness in a vicinity of the first end and the second end and a reduced thickness in regions further away from the vicinity of the first end and the second end. The coating layer of the second half may have a uniform thickness.

Abstract: A rotary drive arrangement for a surgical instrument that includes a surgical end effector. In one form, the rotary drive arrangement includes a drive shaft assembly that is selectively axially movable between a first position and a second position. A rotary transmission operably interfaces with the drive shaft assembly such that when the drive shaft assembly is in the first axial position, application of one of the rotary drive motions to the drive shaft assembly causes the rotary transmission to apply a first rotary control motion to the surgical end effector and when the drive shaft assembly is in the second axial position, application of the rotary drive motion to the drive shaft assembly causes the rotary transmission to apply a second rotary control motion to the surgical end effector.

Abstract: A wire assembly securement apparatus comprises a retainer body and first and second elongated arms. The retainer body is configured to attach, via a plurality of binding attachments, to a wire assembly. The first and second elongated arms are structured to extend from the retainer body and facilitate, via the plurality of binding attachments, attachment of the retainer body to the wire assembly. A retainer portion has a passage formed therein which is configured to a protrusion, such as a mounting stud. In various embodiments, first and second capture flanges extend via the passage and are configured to secure the securement apparatus to the protrusion. In various embodiments, the retainer body and first and second elongated arms are structured to attach to the wire assembly via a plurality of types of binding attachments.

Abstract: A working height adjustment device of a processing machine includes a retaining frame, a slide seat, and a lever having a connecting rod pivoted between the retaining frame and the slide seat. An adjustment seat of the slide seat has an accommodation hole. The accommodation hole is provided with an elastic member, a movable member, and an eccentric rod. The movable member has an engaging hole. The engaging hole has a diameter greater than that of a micro adjustment screw rod. The engaging hole has a toothed portion. Thereby, the eccentric rod is turned to push or release the movable member for the toothed portion of the engaging hole to engage with or disengage from a threaded section of the micro adjustment screw rod, such that the micro adjustment screw rod is tuned or the lever is pulled up and down to adjust the cutter seat quickly.

Abstract: A ratcheting-type rod engaging nut and assembly for releasably engaging a tie-down rod, and including a generally cylindrical body element having an upper cylindrical portion of a first diameter, a lower cylindrical portion of a second diameter less than the first diameter, and a tapered bore coaxial with and interconnecting the upper bore and the lower bore; an assembly of rod gripping segments disposed within the internal bore and surrounding a passageway for receiving a tie-down rod, each segment of the assembly including an outwardly facing surface having a tapered portion for engaging the tapered bore, and an inwardly facing surface for engaging the rod. A cap is disposed at the top of the body element and includes springs for downwardly biasing the segments into engagement with the tapered bore and for causing the facing surfaces of the segments to engage an outer surface of the rod.

Abstract: A nut assembly comprises a capture nut having a smooth bore adapted to fit around the threads of a threaded member such as a bolt or a threaded rod. The capture nut includes a tapered bowl which defines a hexagon in cross section, for example. The nut assembly further includes a split nut having a surface which snugly mates with the tapered bowl of the capture nut. The split nut engages the threads of the threaded member, but only after the split nut is brought into close proximity to the capture nut, thereby avoiding the need to thread the nut assembly the entire length of the threads of the threaded member. The split nut may be formed to two separable pieces, or it may be formed of two integral halves joined together by a thin membrane.

Abstract: The present invention relates to a thread clamping device including a plurality of movable nut segments around a threaded rod, and spring members flexibly holding the segments against the rod. The thread clamping device has a structure adapted to accommodate substantially planar outer surfaces of the nut segments engaging planar surfaces of the end housing of the device, leading to a more robust device and improved performance. Such a thread clamping device can advantageously be used as a component of a self-adjusting shrinkage compensation device, a coupler for threaded rods, hold-downs, among other uses. Various embodiments of the thread clamping device include a multi nut configuration, a quick release embodiment, and embodiments including mechanical or magnetic clip attachments.

Abstract: A slidable clip for mounting on a stud, the slidable clip comprising a hollow block with one or more horizontal resile hook protruded from surface of the hollow block. A slidable block with one or more slot located on surface of the slidable block and one or more vertical resile hook protruded from surface of the slidable block, wherein the slidable block slides inside the hollow block to form an axial hole which is through the hollow block and the slidable block such that when the slidable clip is mounted on the stud through the axial hole, the horizontal resile hook hooks at a desired location on to the slot and the vertical resile hook hooks at a desired location on to the stud.

Abstract: A cable connector with improved performance and ease of use. The connector has staggered ports to reduce crosstalk and to prevent incorrect insertion of a plug into a receptacle. The plug may be constructed with subassemblies, each of which has a lossy central portion. Conductive members embedded within an insulative housing of the subassemblies may be used to electrically connect ground conductors within the subassemblies. Further, the connector may have a quick connect locking screw that can be engaged by pressing on the screw, but requires rotation of the screw to remove. Additionally, a ferrule may be used in making a mechanical connection between a cable bundle and a plug and making an electrical connection between a braid of the cable bundle and a conductive shell of the plug. The ferrule may be in multiple pieces for easy attachment while precluding deformation of the cable, which disrupts electrical performance.

Abstract: A round rod guide (10) for mounting a stud bolt attached to a container side includes a plastic body, the stud bolt shaft (30) of the stud bolt being insertable onto and attachable to the plastic body. The plastic body has in its interior a channel (35) for receiving the stud bolt shaft (30) and on its free end, a receiving opening (19) for insertion of a round rod. The plastic body is formed as two parts with a first, cup-shaped base part (11) and with a second insertion part (16) insertable into the cup-shaped base part (11) in at least two different insertion positions that are rotated relative to one another at a predetermined angle.

Abstract: A push-on clip fastener for securing two components together, such as interior automotive components. The push-on clip fastener includes a housing, a cover and a spring. The housing may include an aperture, wherein the housing may be capable of being located over a stud to secure an interior automotive component there between. The cover may include a pair of legs, wherein the cover may be insertable into the housing. The legs may be inserted into the housing cause the spring to straighten. The spring may include a slot, wherein the slot may be aligned with the aperture in the housing. The straightening of the spring may cause a clamp load. The housing may also include projections located on each side of the housing. The cover may also include retaining features located on each side of the cover that may be engageable with the housing projections to secure the fastener together.

Abstract: A fastener device and assembly comprises segmented arms of rectangular cross section that extend inwardly from a central opening in a surface of the device body. A distal end portion of each segment arm comprises an internally threaded portion, to collectively form a single thread engageable with an externally threaded fastener. Centering portions enhance alignment of the device when applied to the externally threaded fastener.

Abstract: A device is for tensioning a rod having a threaded portion and includes an actuator adapted to provide a tensioning axial force and a tie-rod adapted to transmit the axial force from the actuator to the threaded portion of the rod. The tie-rod includes a plurality of jaws, the jaws being movable radially between a closed position at which the jaws are engaged with the rod threaded portion and an open position at which the jaws are disengaged from the threaded portion, each jaw having an outer surface. A locking element includes a sleeve slidable axially along the tie-rod and disposable about the jaws, the sleeve having an inner frustoconical surface contactable with the outer surfaces of the jaws.

Abstract: A device for securing a panel or the like to a mounting stud having external teeth includes an annular first body having an inner periphery and at least one lock finger extending from such inner periphery. An annular second body has a center opening, at least one lock opening spaced from the center opening for receiving the lock finger to lock the first and second bodies together, and at least one leg extending inwardly overlying the center opening for engaging the external teeth on the mounting stud. The second body is adapted for assembly to the first body with a panel or the like between the bodies such that the center opening can be mounted over the mounting stud with the at least one finger engaging the teeth on the mounting stud to prevent removal.

Abstract: A nut for screw connections has two substantially identically sized nut segments of a half-shell shape, wherein the nut segments each have an inner side provided with an inner thread segment defining together an inner thread. The nut segments are connected to each other so as to be moveable toward each other until the nut segments reach a closed position. The nut segments are maintained in the closed position by springs or a locking device. An actuating device is moveably arranged on at least one of the two nut segments for releasing the closed position, wherein the actuating device is adapted to manually actuated.

Abstract: A device for fastening a component to a fastening stud includes a holding member and a holding disk for contacting first and second surfaces of the component, respectively. The holding member and holding disk are preliminarily connected with one another, without the fastening stud, each in the state contacting the component. The holding disk has fastening projections and at least one elastic member which prohibits the fastening projections from contacting the second surface of the component, so that the device is moveable with regard to the component in a direction perpendicular to the moving direction of the fastening stud through a through hole of the holding disk. The elastic member is elastically deformed upon mounting of the fastening stud through the through holes of the holding disk and the component, such that the fastening projections contact the second surface of the component.

Abstract: A two-piece locking nut assembly for securing a mantle to a head assembly of a cone crusher. The two-piece locking nut assembly includes an inner nut and an outer nut. The inner nut includes a set of axial bores that each receive a jackscrew. Once the locking nut assembly is in position on the head assembly, the series of jackscrews are tightened to exert a force on the mantle that is counteracted by forces through the inner nut and into the head to create a locking force between the locking nut assembly and the head assembly. The outer nut is turned along the inner nut to hold the locking nut assembly in place. Once the outer nut is moved into position, the jackscrews are removed such that the outer nut continues to apply the locking force between the mantle and the head through the locking nut assembly.

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

Abstract: A torque nut assembly includes a multiple-piece nut body and a cap. The nut body can be positioned to define a threaded axial passage, and can expand radially to open the threaded axial passage. The cap is shaped and sized to substantially engage the nut body when the threaded axial passage is so-defined. The cap is locked to the nut body when the cap is engaged thereon.

Abstract: The invention provides for a retainer for stabilizing a threaded member. The retainer may include a base portion having an opening and an outer perimeter lying in a first plane, the opening having a plurality of elongated sections each extending toward the outer perimeter so as to define in the base portion one or more arms. Each of the aims may have a head section having at least one groove, the head sections being located in a second plane which is parallel to and spaced apart from the first plane. The elongated sections may be symmetrically arranged about an axis. The grooves may be arranged to define at least a portion of a helix. The outer perimeter of the retainer may be circular.

Abstract: A fastening arrangement, including a quick-action nut that has two nut parts. The nut parts each have a groove to receive a threaded rod, and including a locking element with at least one passage opening for securing the quick-action nut to the threaded rod. In the passage opening, the locking element has a locking surface for pressing the nut parts against the threaded rod as well as a centering surface for centering the threaded rod in the passage opening. In the passage opening, the locking element has a transition surface that adjoins the locking surface and the centering surface, and that runs between the locking surface and the centering surface.

Abstract: A locking and unlocking nut structure contains a body including a through hole and a semi-circular recess, and the semi-circular recess having a starting segment and a stopping segment, the body further including a diameter-decreased screw section; a slidable block including a C-shaped cutout, and the C-shaped cutout including an engaging hook extending outward from a lower end thereof, the slidable block including first threads, while the slidable block is fixed on the starting segment, a distance from the first threads to an inner wall of the through hole is larger than an outer diameter of the screw rod (tube); while the slidable block is fixed on the stopping segment, a distance from the first threads to the diameter-decreased screw section is equal to the outer diameter of the screw rod (tube); the screw rod (tube) including second threads to match with the diameter-decreased screw section and the first threads.

Abstract: The present invention relates to a thread clamping device including a plurality of movable nut segments around a threaded rod, and spring members flexibly holding the segments against the rod. The thread clamping device has a structure adapted to accommodate substantially planar outer surfaces of the segments engaging planar surfaces of the end housing of the device, leading to a more robust device and improved performance. Such a thread clamping device can advantageously be used as a component of a self-adjusting shrinkage compensation device, a coupler for threaded rods, hold-downs, among other uses. Various embodiments of the thread clamping device include a multi nut configuration, a quick release, and including mechanical or magnetic clip attachments.

Abstract: The invention provides a split nut connector in which spaced apart nut sections enable the connector to slide over a threaded battery terminal post until contact is made with the battery cable lug and the threaded nut sections are pushed into engagement with the threaded battery terminal post enabling effective tightening of the nut with a minimal amount of rotation in the fastening direction.

Abstract: A stud retainer is configured to securely retain a fastening stud. The stud retainer includes a base integrally connected to beams that are in turn integrally connected to a wall opposite the base. A stud retainer chamber is defined between the base, the beams, and the wall. A vibration-damping interface extends outwardly from the beams. The vibration-damping interface may include a plurality of fingers. The stud retainer may also include at least one flexible brace extending from said wall toward said base.

Abstract: The present disclosure provides a wing nut including an arcuate body, an arcuate insert, a retaining ring, and a support member. The arcuate body defines a first portion of a mounting thread and the arcuate insert defines a second portion of a mounting thread. The arcuate insert and the arcuate body are complementary to one another such that when connected, the arcuate insert and the arcuate body define an upper ring and a collar and the first and second portions of the mounting thread define a complete mounting thread for receiving a threaded male pipe end. The retaining ring is for securing the collar, and the support member is for securing the upper ring. The wing nut is designed to replace an existing wing nut on a hammer union connection that has deformed lugs. The wing nut can be safely replaced in the field without any special equipment or training.

Abstract: The present device relates to a thread clamping device including a plurality of movable segments with threaded inner surfaces suitable for engaging a threaded rod and including a strain gauge therein for measuring the actual strain on the device, in contrast to conventional thread clamping devices restricted to measuring the torque applied during installation, not the actual strain experienced during service. In addition to measuring the actual strain experienced by the thread clamping device, some embodiments of the present invention also relate to a transmitter for transmitting to a remote receiving station the actual strain measured, typically including a suitable identification code for determining which device is transmitting.

Abstract: A nut assembly comprises a capture nut having a smooth bore adapted to fit around the threads of a threaded member such as a bolt or a threaded rod. The capture nut includes a tapered bowl which defines a hexagon in cross section, for example. The nut assembly further includes a split nut having a surface which snugly mates with the tapered bowl of the capture nut. The split nut engages the threads of the threaded member, but only after the split nut is brought into close proximity to the capture nut, thereby avoiding the need to thread the nut assembly the entire length of the threads of the threaded member. The split nut may be formed to two separable pieces, or it may be formed of two integral halves joined together by a thin membrane.

Abstract: A device for fastening a component on a carrier component, wherein the component comprises a through opening and the carrier component comprises a fastening projection being guidable through the through opening, including a first fastening element and a second fastening element, wherein first and second fastening elements can be preliminarily connected together and in the state preliminarily connected together form a reception, with which they can be placed on the fastening projection when the fastening projection of the carrier component is guided through the opening of the component, and wherein at least one of the fastening elements comprises at least one contacting surface, wherein the reception for the fastening projection reduces when a pressure is exerted on the at least one contacting surface when the fastening elements being preliminarily connected together are placed on the fastening projection.

Abstract: A nut assembly comprises a capture nut having a smooth bore adapted to fit around the threads of a threaded member such as a bolt or a threaded rod. The capture nut includes a tapered bowl which defines a hexagon in cross section, for example. The nut assembly further includes a split nut having a surface which snugly mates with the tapered bowl of the capture nut. The split nut engages the threads of the threaded member, but only after the split nut is brought into close proximity to the capture nut, thereby avoiding the need to thread the nut assembly the entire length of the threads of the threaded member. The split nut may be formed to two separable pieces, or it may be formed of two integral halves joined together by a thin membrane.

Abstract: A building comprises foundation; a first stud wall; a second stud wall; the second stud wall is disposed above the second first stud wall; a tie rod operably attached to the foundation and extending within the first and second stud walls; a first nut connecting the tie rod to the second stud wall; a first spring urging the first nut and the tie rod upwardly; a second nut connecting the tie rod to one of the first stud wall and the second stud wall, the second nut being disposed below the first nut; a second spring urging the second nut and the tie rod upwardly; the first spring is configured to carry a load at least substantially equal to the weight of a portion of a length of the tie rod disposed between the first nut and the second nut; and the second spring is configured to carry a load disposed below the second nut, the portion extending to where the tie rod is attached to the foundation.

Abstract: The invention relates in first instance to a nut having a first part (11) which has a first through opening (Of), and having a second part (12) which has a opening (O2) having an opening contour, the parts (11, 12) being connected so as to be rotatable about a rotational axis (A) which passes through the openings (O1, O2), and the openings (O1, O2) being aligned with one another, in addition, the first opening (O1) on its inner face having a profile which extends in the peripheral direction and which is interrupted in the peripheral direction. In order to provide a nut which is quickly mountable on a threaded bolt, and which has a simple design that allows greater security against the nut coming off the threaded bolt, it is proposed that the opening contour of the second opening is non-circular. The invention further relates to a combination of a bolt (4) having a cross-sectional area with a nut (10).

Abstract: A speed nut for engaging a member includes a housing including a first wall having a first opening therethrough for receiving the member and a second wall facing the first inner wall, the first and second walls defining a cavity therebetween; and a plurality of engagement elements arranged in the cavity about a longitudinal axis of the housing to form an opening therebetween, at least one of the engagement elements being freely movable in the cavity between a first position wherein an inner surface of the at least one engagement element is spaced from the longitudinal axis by a first distance for engaging the member and a second position wherein the inner surface of the at least one engagement element is spaced from the longitudinal axis by a second distance greater than the first distance for receiving the member through the opening.

Abstract: A separation fastener assembly includes a housing defining a cavity. A frangible nut is disposed in the cavity. The nut includes a plurality of nut segments. The one-piece frangible nut greatly reduces existing assembly problems and difficulties. Adjacent nut segments are interconnected at fracture lines. A bolt has an end coupled to the nut. A movable element is disposed in the housing and movable from a first position to a second position. In the first position, the nut segments are restrained from radial expansion. In the second position the nut segments are permitted to radially expand for releasing the fastener assembly.

Abstract: The invention provides for a retainer for stabilizing a threaded member. The retainer may include a base portion having an opening and an outer perimeter lying in a first plane, the opening having a plurality of elongated sections each extending toward the outer perimeter so as to define in the base portion one or more arms. Each of the aims may have a head section having at least one groove, the head sections being located in a second plane which is parallel to and spaced apart from the first plane. The elongated sections may be symmetrically arranged about an axis. The grooves may be arranged to define at least a portion of a helix. The outer perimeter of the retainer may be circular.

Abstract: A fastener for securing an undercover panel to an underside of a vehicle is disclosed. The fastener includes a body having a bore for receiving a threaded bolt extending from the underside of the vehicle, a flange for engaging a first side of the undercover panel, a plurality of resiliently deformable engaging fingers for allowing insertion of the bolt into the bore and to resist removal of the bolt from the bore, and a plurality of resilient engaging members for enabling the engaging members to pass in a first direction through an aperture in the undercover panel, and to resist removal of the fastener from the panel. A plurality of reinforcing members extend from the body to engage a respective engaging member, as a result of forces urging said undercover panel towards the underside of the vehicle, to resist flexing of the engaging members away from the body.

Abstract: A nut for screw connections has two substantially identically sized nut segments of a half-shell shape, wherein the nut segments each have an inner side provided with an inner thread segment defining together an inner thread. The nut segments are connected to each other so as to be moveable toward each other until the nut segments reach a closed position. The nut segments are maintained in the closed position by springs or a locking device. An actuating device is moveably arranged on at least one of the two nut segments for releasing the closed position, wherein the actuating device is adapted to manually actuated.

Abstract: An engagement unit for insertion on and engagement with a threaded bolt (33) is provided with an inner part (1) and with an outer part (2) that can be slid onto the inner part (1). The inner part (1) and the outer part (2) are configured with torque receiving means (8, 9, 23, 24) for transmitting a torque applied to the outer part (2) to the inner part (1). After the inner part (1) has been slid onto a threaded bolt (33) in a pre-assembly arrangement in which latching means configured on spring arms of the inner part (1) and cooperating with the threaded bolt (33) are able to slide along the threaded bolt (33), the engagement unit according to the invention can thus be inserted onto the threaded bolt (33) and, once the outer part (2) has been slid onto the inner part (1), can be tightened in the manner of a screw.