Abstract: A self-locking strut-nut system for securement within a longitudinal constructional rectangular channel includes an element for selectable lockable engagement with the rectangular channel, such element defining a medial plane of the nut system. Such system also includes an element for threadably receipt of a complementally threaded rod, such receipt element having an axis transverse to such medial plane, the receipt element extending in length of the strut-nut system along such axis which exhibits upper and lower ends. The system also includes a rigid planar washer having an aperture. The system additionally includes an element for selectable engagement within the rigid washer, such engagement element extending integrally downwardly from a lowermost plane of the system, co-parallel to the medial plane of the system and transverse to the axis of the receipt element. Accordingly, the washer is secured transversely to the axis of the receipt element and against the lowermost plane of the system.

Abstract: A connector comprises first and second opposed, spaced apart locking lugs having first and second opposed, spaced apart faces between which the channel member is clamped. A flexible connection integral with the opposed faces of the locking lugs joins the locking lugs together in a unitary structure in a manner which allows for the space between the opposed faces of the locking lugs to be varied. The first and second locking lugs are provided with axially aligned bores which, when securing the connector to the channel member, receive a fastener for drawing the opposed faces of the locking lugs toward one another when the fastener is advanced into the axially aligned bores for clamping the channel member in between the opposed locking lugs of the connector.

Abstract: A connector for juxtaposed elements which are provided with laterally elongated holes therethrough, has a shaft which has a laterally elongated head portion at one end. A rotation blocking member has a washer portion through which the shaft passes, and a blocking portion extending from the washer portion. A reaction member preferably a threaded nut engages the end of the shaft opposite the head portion. In use, in an assembled position for insertion through the holes of the juxtaposed elements, the head portion is disposed in register with the blocking portion on the forward end thereof. Preferably, a spring between the nut and the washer portion tends to retract the shaft relative to the washer portion so that the head portion is lodged in compression on the end of the blocking portion. The shaft is rotated to move the head portion out of register with the blocking portion and to engage a side surface of the blocking portion which itself is non-rotatable within the slot.

Abstract: A wedge for use with tie rods in maintaining a predetermined spaced relation between opposed forms prior to and during the pouring of a concrete wall in the space between the forms incorporates a ramp portion which includes an elongated keyhole slot for receiving a tie rod therethrough, and the portions of the ramp bordering this slot are especially formed to reinforce them against deflection or collapse under the loading applied thereto from the head of a snap tie rod supported thereon and also to provide concave self centering capability and smooth surfaces to avoid nicking.

Abstract: A locking device for securing a component, such as a seating frame to a floor, for example, in an aircraft, includes a locking bolt, one end of which is provided with a locking cross-head, having two projections that engage under rail rims of a support rail in the floor. The other end of the bolt is provided with a threading that cooperates with a nut for providing the required clamping force. At least two alignment guide studs are so positioned that the locking bolt is oriented intermediate the two studs. These studs fit into respective recesses in the rail for properly locating the locking device. A carrier member of the locking device may be a separate base plate or it my be part of the seating frame structure. A slot, at the visible end of the locking bolt, is so oriented, that it indicates the locked or unlocked condition of the locking bolt.

Abstract: A fastening system allows the panel mounting of handles and similar hardware in both front and rear mount configurations. A caged bolt is provided in a transverse aperture extending through the hardware item. A mounting bolt includes a head-distal shank portion for engagement with the bolt when inserted through the hardware rear face, and head-proximate unthreaded shank portion for capture by the caged nut when the bolt is inserted through the hardware item from the front face. The caged nut can be positioned along the length of the aperture to align with a panel mounting hole.

Abstract: An arrangement for fixing a clamp to a C-shaped rail comprises a fixing plate urged against inner arms of the rail by a compression spring, the plate having a width which fits between inner arms so that it can be inserted from above, and a length, which fits between the arms of the C-shape, diagonally opposite portions of the ends of the plate being shaped to permit it to rotate between the arms of the rail. The spring is located between the head of a spigot fixed to the fixing plate and a supporting plate. The ends of inner arms are arranged to be located in grooves in the fixing plate.

Abstract: The present invention provides an annular integral bolt heat shield and axial retention apparatus to axially retain bolts used for holding together two rotor elements during assembly when the bolts are otherwise subject to sliding into a closed cavity of the assembled engine or one of its modules. The integral retainer and heat shield engage the bolts disposed through bolt holes in a gas turbine engine rotor shaft so that the bolts remain straight during assembly when a second rotor element such as a second shaft is being attached to the first shaft and bolt holes in the second shaft have to engage and fit over the bolts of the first shaft.

Abstract: A self-adjusting lock has a keeper stud with a base that is mounted in a recess in a keeper assembly so that it can slide in four directions. As the bevelled keeper stud is pressed into an opening in a latch assembly, the stud self-adjusts in the necessary direction to achieve alignment. A spring pressing the base against a surface causes the base, and so the keeper stud, to be frictionally held in its new position. The keeper stud has a series of spaced ratchet teeth, axially separated from one another, any of which can interengage with the latch mechanism. Thus, the lock is adjusted in this direction each time the lock is closed, resulting in a lock self-adjustable in six directions.

Abstract: A fastener used to secure an object on a channel including a channel nut which may be entered into a slot in the channel and then turned about an axis of rotation to extend in a generally crosswise position relative to the slot for engagement of portions of the nut at locations generally adjacent opposite ends of the nut with edges of the channel. A retainer for the nut has a body and a flange integral with the body which may engage the channel at opposite sides of the channel slot for preventing the retainer from being pushed inwardly completely through the slot when the nut is turned to a crosswise position in the channel and when an object is being fastened to the channel. Resiliently deformable spring elements on the body of the retainer are so sized and arranged as to be engageable with the channel for holding the nut in its crosswise position against slippage lengthwise of the channel slot.

Abstract: A device is disclosed for holding a decorative cover on a bumper. Known holding devices provide either attachment of the decorative cover to the bumper in a manner fixed by means of a fastening clip or screw fastenings which are passed through an elongate hole in the bumper, the intention of this being that the elastic bumper should be movable relative to the decorative cover. The new device for holding a decorative cover includes a holding clip and a fixing pin, the decorative cover merely requiring to be pushed on rather than attaching by screw threads. The elongate hole is made in the holding clip. The pin is inserted with an accurate fit into the bumper and can be moved along the elongate hole relative to the holding clip and the decorative cover.

Abstract: A corner connector connects two sections to one another, which sections are at right angles to one another and have C-shaped attaching portions. The sections have two section legs and two webs projecting inwards two at a time from the section legs. The corner connector consists of two angle plates, two wedge rails, four screws and associated parallelogram nuts. The plates each have two grooves, which accommodate the webs in a form-fitting manner, and wedge surfaces on the opposite sides. The nuts grip behind the webs. The plates are spread by the wedge rails clamped against the nuts by the screws. High bending and tensile strength of the joint is achieved by this design.

Abstract: The attachment device comprises a C-shaped profile fitting and a clamping strap, inserted therein, with an inset screw. The mutually facing strips of the fitting are thickened on the inside towards the slot. The strap grips behind this thickening. Thus the limbs of the fitting are prevented from spreading apart. In order to secure the strap against displacement along the profile, it has transverse webs which penetrate with an edge into the thickenings when a nut is tightened on the screw and thus produce a positive connection between the strap and the profile even in the longitudinal direction of the profile. The attachment is suitable, above all, for the underfloor attachment of appliances to rail vehicles.

Abstract: A connecting device comprising a nut and a nut holder made of synthetic resin for holding the nut in a predetermined position in a T-groove made in one side of an elongated standardized member. The nut holder consists of an elastically deformable portion and two projections integrally formed with the opposing ends of the deformable portion. The deformable portion has a width slightly greater than that of the T-groove. The nut is held between the projections of the nut holder, and the nut holder is inserted into the T-groove. Once in the T-groove, the deformable portion of the nut holder remains elastically deformed, thus holding the nut at the predetermined position.

Abstract: A fastener which can be economically made for securing parts to metal framing (e.g. channel framing) having side flanges with inwardly turned, hook-shaped lips defining a slot therebetween. The fastener comprises an elongate body having inside and outside faces, opposite sides and opposite ends, a width less than that of the slot and a length greater than the width of the slot. The fastener also includes a carrier constituting an elongate platform having inside and outside faces, opposite sides and opposite ends. The body is mounted on the outside face with means for rotatably mounting the body. The platform is suspended in the slot on resilient non-linear arms which increase in effective length when stressed by an effective inward force permitting the body to be rotated into generally crosswise position relative to the slot and tending to draw the body into clamping engagement with the lips of the framing.

Abstract: A channel nut which can be economically made for securing parts to metal framing (e.g. channel framing) having side flanges with inwardly turned, hook-shaped lips defining a slot therebetween. The channel nut comprises an elongate body having inside and outside faces, opposite sides and opposite ends, a width less than that of the slot and a length greater than the width of the slot. The bottom includes side flanges and is preferably formed in rhomboid sections from channel metal. A tapped hole extends through the bottom.

Abstract: The device comprises a nut (4) floatingly housed in a seat made in a barrel (3) of partially cylindrical form and provided with a radial through-hole (10) emerging in the seat and permitting the passage, with play, of the threaded rod of a screw (6) intended to interact with the said nut for the assembly of two parts (1, 2). The bearing surfaces opposite the seat and the nut (4) are provided so as to form a pivot joint for taking up any angular offset between the axis (13) of the screw (6) and the axis (14) of the through-hole (10) of the barrel. On its periphery, the nut (4) is provided with means (23) for immobilization in rotation relative to its seat in the barrel (3). The device also comprises means (5) for retaining the nut (4) on the barrel as well as a pair of washers (7, 8) for compensating for a variation in thickness.

Abstract: A barrel nut retention apparatus for retaining a barrel nut within a cylindrical bore in a panel comprising a barrel nut and retaining means. The barrel nut is comprised of a threaded bore having a longitudinal axis, and a partially cylindrical base portion having opposed first and second shoulders on the outer extremity thereof. The opposed shoulders project away from the threaded bore. Furthermore, the retaining means is comprised of a resilient member having a first portion and a second portion being positioned on opposite sides of the threaded bore and being seated on the opposed shoulders in a plane generally perpendicular to the longitudinal axis. A part of the first portion and a part of the second portion are adapted to engage the panel when the apparatus is installed within the cylindrical bore. Additionally, the resilient member has a third portion disposed between the first and second portions and integrally connecting the first and second portions.

Abstract: A pallet for supporting a plurality of similarly shaped parts piled one above another in a stacked relationship. Locator pins on a base portion of the pallet keep the parts in the desired stacked condition. The pallet base includes two parallel horizontal tubes that are adapted to receive the prongs of a fork lift truck for transporting the pallet. Structural beam elements are welded to the prong-receiving tubes to provide a high-strength base structure. The locator pins are detachably connected with anchoring blocks that can be slidably adjusted in (along) hollow tracks affixed to the base area of the pallet. Each anchoring block has threaded engagement with a socket member, such that when a locator pin is inserted into a socket member and turned around the pin axis, the anchoring block is automatically clamped against interior surfaces of the associated track.

Abstract: The clamping type compressive joint made between a continous section (10) and a component (14) is created by means of at least one clamping plate (16) that can be introduced from the front into an undercut groove (12) and rotated by a securing bolt (18). On tightening the securing bolt (18) the continuous section (16) is partly deformed by the clamping plate/plates (16). Each of the section flanges (22), which tend to taper in cross-section in the direction of the longitudinal opening (20) of groove (12), features at least one weakening notch (24) running in the longitudinal direction (c). Clamping cam tips (26) on flanges (22) lying beyond these weakening notches (24) are, after tightening the securing bolt (18), plastically deformed in the region of the clamping plate/plates (16) which is/are essentially in plan view in the form of a parallelpiped and is/are rotated 30.degree.-60.degree. in the groove (12).

Abstract: An improved device for securing a structural member to a generally U-shaped longitudinally extending channel member is set forth. A bridge section connects together two generally parallel sidewall sections with the sidewall sections each having a respective lip which extends inwardly laterally towards the other sidewall section and bends towards and ends a spaced distance from the bridge section. A first nut has oppositely extending lateral arms which are adapted for positioning beneath and are engageable with the lips. A bolt can be threaded into a threaded opening in the nut. The improvement is a support member positionable between the bridge section and the lips and between the sidewall sections. The support member has a pair of lateral sides, each positionable adjacent and facing a respective one of the sidewall sections. It also has a pair of ends alignable along the channel member. The support member defines a cavity generally orthogonal to the lateral sides and to the ends.

Abstract: A method of fastening and a fastening assembly are disclosed, where a nut may be retained in a grooved channel by a resilient retainer. The retainer has a central portion with an opening in registry with the threaded opening of the nut and also has two wings extending in opposite directions outward from the central portion. The wings have sharp edges to grip into the channel. A tool with projections is used to disengage the wings from the channel and permit the assembly to be slid along the grooved channel to a desired position. Upon withdrawal of the tool, the sharp edges of the wings resiliently grip into the channel to releasably retain the nut in the channel.

Abstract: A fixing device 30 is provided for securing two members, one of which is formed with a groove, together in a predetermined angular relationship. The device includes two limbs 32,34 having respective free ends 36,46 located at the same end 49 of the device, the limbs being arranged to act as levers which, when pushed towards each other at a predetermined position, cause the free ends 36,46 to move apart to engage walls of the groove. The device 30 also advantageously includes a necked slot 50 for receiving, for example, a screw, for securement to the one planar surface, which necked slot co-operates with the screw such that the screw will push the limbs together in order to effect said engagement as the screw secures the device to the ungrooved member.

Abstract: A sliding nut (16) or sliding screw is intended for insertion into C-bars (10) having inwardly pointing marginal webs (14). In the mounted condition, the marginal webs (14) engage longitudinal grooves (22) of the nut (16) or of the screw head. The longitudinal grooves (22) are provided with projections which, during tightening of the nut and screw assembly against the C-bar, cause the marginal webs (14) to deform. At least one projection is formed by a lateral curvature or by an obtuse- or acute-angled deflection of the side wall of a longitudinal groove (22) such that it laterally bends a marginal web (14) in arcuate manner or cuts into it.

Abstract: A slat assembly for vehicle luggage racks is disclosed with a pre-assembled slat and end cap. The end cap includes a mounting member for insertion into the end of the slat. A hole through the mounting member receives a headed stud as a separate and separable part from the mounting member. When the mounting member is inserted into the slat, the stud is held captive by the overlying rub strip on the slat or the flanges of the slat.

Abstract: An improved closet bolt has a generally oval head, a shank including a threaded fastening portion extending from the head and generally concentric with respect thereto, and anti-turn ears or protrusions extending radially outwardly from a portion of the shank between the threaded shank portion and the head, the threaded portion adjacent the anti-turn ears having on opposite sides thereof a plurality of sawtooth or ramp members, the ramps sloping toward the bolt head, and wherein the bolt is constructed of a suitable high strength plastic material. Methods for using the improved closet bolt result in quick and efficient toilet installation, removal and repair.

Abstract: In a shelving system, a columnar post, an outer plate, and a fastening device for fastening the outer plate removably to the columnar post. The fastening device includes a bolt having a threaded shank and a transverse head, which is integral with the threaded shank, and which includes a longer portion and a shorter portion, and fastener, which is threadable onto the threaded shank. The bolt is adapted to be sucessively inserted through an aperture in the outer plate, inserted through an aperture in a front wall of the columnar post, rotated about the threaded shank in a clockwise sense, and drawn outwardly until the longer portion of the transverse head bears against a curved corner where the front wall merges with a lateral flange of the columnar post, so as to prevent further rotation of the bolt in a clockwise sense. The longer portion of the transverse head is conformed to the curved corner so as to bear in surface-to-surface contact against the curved corner.

Abstract: A fastener unit for use on a composite nonmetallic surface which includes a channel of composite nonmetallic material, which may be bonded or riveted to the supporting surface, and has at least one opening through it, and a fastener assembly which includes a basket having an opening in its center and slotted deflectable end walls, a retainer member, including a flat portion with tabs projecting into openings in the side flanges of the channel and a tubular portion extending into the opening in the central web of the channel, and a nut having a base portion with tabs received in the openings in the end walls of the basket. Clearances are provided so that the nut has limited lateral floating movement. The nut is removable from the remainder of the unit by deflecting the end walls of the basket, which permits the nut to be replaced.

Abstract: A caged fastener adapted to be mounted in a hollow frame member without welding comprises a fastener body having a threaded bore therein and a cage enclosing the fastener body and providing it a limited range of movement in at least one direction and providing access to the threaded bore. Holding members comprising rigid and spring members extend from the cage and frictionally fit inside the hollow frame member. The spring resilience of the spring member allows the caged fastener to be snapped in place and retained in the frame member.

Abstract: The present invention concerns an improved floating caged nut having a first cage in the shape of a U in cross-section in which a collar nut is retained in a floating manner, this first cage being housed inside a second cage also in the shape of a U in cross-section and whose legs have openings co-operating with protruding lugs provided on the legs of the first cage to thus permit the removable mounting of the first cage in the second cage, by simple pinching of the legs.

Abstract: A fastener for use in attaching structural channel members having slots extending along one side of the channel to other channel members or other structural elements. The fastener includes retaining means for holding the fastener in a selected position along the channel slot ready to receive a fastening bolt or the like for connecting the channel member to an additional structural member. The retaining means is designed so that during connection of the structural members the retaining means will be displaced and direct contact between the structural members being attached will be achieved.

Abstract: A unitary connection assembly for connecting channel structures is described. The assembly has a special channel fastener coacting with a fixture, a biasing member and a threaded member. A method is described for attaching the unitary connection assembly to a channel.

Abstract: A nut is comprised of a one piece stamping having a base wall with an integrally formed conical nut. A frame member has a bolt receiving first aperture in a first planar wall and a nut receiving second aperture in a second planar wall extending at a generally perpendicular angle with respect to the first planar wall. The stamping has integral stop tabs which engage with the frame member to limit the insertion of the stamping into the second aperture so that the conical nut is registered with the bolt receiving first aperture. First and second integral flexure arms flex inwardly upon insertion of the stamping through the second aperture and then engage with the inner surface of the frame member to retain the stamping against removal from the frame member.

Abstract: A fastener assembly for floatingly retaining or captivating at least one fastener is disclosed. The fastener assembly includes a flexible channel member with discrete projections extending from opposed flange portions towards each other and at least one fastener having a base which is captivated between the discrete projections and a web portion of the channel member. The projections extending from at least one flange portion are configured to present a camming surface to a fastener base as it is being inserted into the channel member through the opening between opposed projections to cause the channel member to elastically flex and to move at least one flange portion outwardly to permit the fastener base to be seated in the channel member through the opening. The projections are further configured to present removal of the fastener base from the channel member through the opening as long as the channel member remains unflexed.

Abstract: A T-bolt assembly having a first elongated stud with a cross bar at one end adapted to be positioned within the T-slot of a machine table and externally threaded at its other end. A second elongated stud is externally threaded at both ends while an internally threaded collar threadably engages the external threads on the first stud and one end of the second stud when the studs are axially aligned and adjacent each other. A non circular projection extends axially outwardly from one end of one stud and is received within a like shaped recess on the end of the other stud to prevent the studs from rotation relative to each other.

Abstract: A special nut is used for affixing parts to a channeled structural member. The nut has an improved positioning means protruding from the top surface of the nut for properly positioning the nut in the channel member.

Abstract: A plurality of nut inserts (40) and an elongated channel (10) form a gang nut assembly. The channel (10) is formed to include a plurality of longitudinally spaced apart nut receiving openings (28). These openings (28) are partially defined by opposed recesses (24, 26) in flanges (18, 20). The nut insert (40) has a base length (LB) which is smaller than the length (Y) of the opening (28). It also has end walls (44, 46) which diverge apart as they extend upwardly from a base (42). The base (42) is put into registry with the opening (28) and the nut insert (40), is pushed upon, to force it through the opening (28). The sloping outer surfaces of the end walls (44, 46) contact flange edges (30, 32, 34, 36). This causes the end walls (44, 46) to spring together, in response to the push on the nut insert (40), allowing the nut insert (40) to pass through the opening (28).

Abstract: A nut for accommodation in an open channel section (1) is comprised by a main body (6) provided with a threaded hole (7) and a gripping means (8) connected to the main body. The gripping means comprises a clamping device (9) for co-operation with the limiting edges (3, 4) of a longitudinal opening (2) in the channel section. During insertion of the nut in the channel section the gripping means is subjected to a torque about two generally orthogonal axes, and upon completed insertion the nut is held in the correct position by means of a form and/or friction locking co-operation between the limiting edges (3, 4) of the opening (2) and indentations (12, 13) in the legs of a U-shaped loop (9) constituting the clamping device.

Abstract: A composite channel and plate nut assembly comprises a U-shaped channel having a plurality of apertures in the web portion thereof immediately adjacent the flanges therein for the acceptance of a plurality of downwardly extending lugs on the plate nut whereby reaction forces are accepted directly by said channel flanges upon threading of a bolt into said nut.

Abstract: A pair of legs depending from the ring of a lock nut carrier pass through oppositely disposed arcuate slits in a spring clip and cleave to the lock nut so that the spring clip will support the nut within a metal channel framing member. The carrier and nut are locked into position ready to receive a fastener by pushing down on the carrier and spring clip with a thumb or finger and rotating the carrier legs within the arcuate slits.

Abstract: A file cover has paper-penetrating prongs which are secured in the assembly by engagement with a mounting channel and at least one of which is slidable along the channel whereby the spacing between them is infinitesimally adjustable. A retainer for each prong is preferably an apertured block borne by a parallel channel member, at least one of the blocks being slidably movable in the parallel channel member.

Abstract: A bumper bar comprised of joined together stampings defining a closed box section has a cage attached inside the bumper bar and overlying an elongated opening in the bumper bar. The elongated opening has a major dimension which extends in the direction of desired adjusting movement of the bumper bar relative to the structural member upon which bumper bar is to be mounted. A bolt has a bolt head at least sufficiently smaller than the elongated opening to permit axial insertion of the bolt head through the elongated opening. The bolt head has a major dimension greater than the minor dimension of the elongated opening so that a quarter-turn rotation of the bolt subsequent to insertion through the elongated opening will align the major dimension of the head for engagement with the bumper bar to prevent removal of the bolt from the elongated opening.

Abstract: A receptacle (10) is incorporated into the floor (2) of an aircraft cargo compartment. Receptacle (10) has a socket (12) that receives a head (30) of a stud (24). Shaft (26) of stud (24) extends through panel (6). Nut (70) is threadedly tightened onto shaft (26) to secure panel (6) thereto. Nut (70) has a socket (80) isolated from threaded hole (72) that engages shaft (26). Socket (80) is substantially identical to socket (12). A second stud (48) is engaged in socket (80) and in turn engages cargo restraining means.

Abstract: Bumper for motor vehicles consisting of two half-shell-shaped profile members made of synthetic material, which are connected at their end flanges by welding to form a closed hollow profile, and with fastening elements for attaching the bumper to the vehicle body, which are disposed on the half-shell-shaped profile member adjacent to the body, characterized by the fact that the profile member adjacent to the body has at each fastening point an opening with integral side locking arms and the fastening elements have molded counterlocking elements which can be releasably engaged with the locking arms.

Abstract: A fastener strip arrangement for joining splice cases of the type including a pair of splice case members having outwardly extending flanges positioned in opposed cooperating relationships to define cooperating flange pairs on opposite sides of the splice case. The fastener strip arrangement comprises two elongated strips each of generally channel-shaped cross-section and including a web having legs projecting from opposite side edges thereof in the same direction. One leg of each strip projects from the web a shorter distance than the other leg. One of the strips has generally keyhole-shaped slots formed through the web to extend generally longitudinally thereof. The generally keyhole-shaped slots each have large opening areas and narrow opening areas, with the narrow opening areas lying closer to the short leg of the strip than to the long leg of the strip and with a substantially greater portion of each large opening area being located on the side of the narrow opening spaced toward the long leg.

Abstract: A fastener for attaching fixtures to channeled structural members has an extended bolt engaging section which increases the load carrying capacity of the fastener. The fastener, with the extended section, can be used in channeled structural members of limited depth as well as the standard channeled structural members without sacrificing the load carrying capacity. The extended section has an alignment feature which will align the flanges of the channeled structural member with the grooved flange engaging means of the fastener permitting the use of the fastener in channeled structural members having widths greater than standard members.

Abstract: The present invention relates to encaged nuts manufactured either singly or in the form of a strip or band of such nuts.Said encaged nuts include essentially a nut (1) floatingly retained by a circlip (10) between the legs (9) of a support (2) of U-shaped cross-section whose base (3) is sandwiched between a lower strip (5) and an upper strip (4) which may be adhesively attached to any part or member of composite material.The encaged nuts according to the invention, whether used singly or in the form of a strip, allow assembling elements of a composite material such as for example panels.

Abstract: The device for fixing an object by screwing to a section having two flanges directed substantially towards one another and defining therebetween a longitudinal opening comprises an elongated plate provided with one of the threaded portions and rotatable in a plane substantially parallel to that of the flanges of the section. In a free position, the longitudinal direction of the plate corresponds substantially to that of the section. In a retained position, the plate is retained under the flanges of the section and immobilized in one at least of the directions of rotation. Resilient means are provided for urging the plate towards the flanges of section in the retained position. The resilient means bear on a wedge intended to be inserted between the external face of the flanges of the section and the object to be fixed. This wedge has a passageway for a connecting rod between the plate and the other screw fixing element.

Abstract: Disclosed are fastener assemblies in which the fastener is captivated in a channel member and is removable through the opening between inturned flange edges of the channel member. Embodiments of a nut retainer assembly and a bolt retainer assembly are disclosed as is an embodiment of a complementary clamping system utilizing a nut retainer assembly and a bolt retainer assembly. In order to facilitate insertion of a fastener through the opening between inturned flange edges of the channel member, at least one of the flats of the base of the fastener includes an inclined portion. Further, in order to facilitate removal of a captivated fastener, at least one of the flats of the base of the fastener includes a cut-out or recessed portion which with the inturned flange edge forms a slot suitable for receiving the tip of a screwdriver.

Abstract: A fastener for securing parts to channel framing having side flanges with inwardly turned, hook-shaped lips defining a slot therebetween. The fastener comprises an elongate body or nut having inside and outside faces, opposite sides and opposite ends, a width less than that of the slot and a length greater than the width of the slot. The fastener also includes a clamp member carried on the outside face of the nut for engaging the outside faces of the channel lips, and guide members extending from the clamp member to a position beyond the inside face of the nut. At least one of the guide members has a portion bent to provide a spring finger receivable in a recess in the inside face of the nut to hold the clamp member in assembly with the nut.