Abstract: A speed nut provides a separable housing, when closed, defining an internally threaded cavity for engaging a threaded shaft, and when open, allowing movement of the speed nut along the shaft without engagement of the threads. Interdigitated knuckles on the housing portions provide robust resistance against axial shifting when the nut is used to apply axial force to the threaded shaft. The knuckles may also provide a hinge point allowing the nut to be opened and closed with a simple hinging action and a means for locking the nut portions together through a releasable pin passing through the opposite knuckles.

Abstract: The present invention relates to a multi jackbolt tensioner and methods of using the same. The present invention alleviates some of the problems associated with presently available multi jackbolt tensioners.

Abstract: An air flap device for use in a motor vehicle can have an air flap unit comprising a plurality of air flaps pivotally supported about an axis of rotation between a closed position and an open position, wherein the air flaps each have a cover section for covering and uncovering air passages and a fastening section for fixing the air flaps in the air flap device, a drive unit for driving the air flaps, a control unit for controlling an operational capability of the air flaps the control unit having corresponding receiving sections for receiving the fastening sections of the individual air flaps, the air flap device being configured in such a way that a detectable force is generated in the event of a malfunction or non-function of an air flap, wherein the detectable force results from a direct interaction between the fastening section of at least one air flap and the corresponding receiving section of the air flap in the control unit.

Abstract: An attachment device is split collar that surrounds a conventional keyway or setscrews. The split collar arrangement is equipped with either two or four bolts (one or two per side) depending on the overall size of the invention. In the case of use on a keyway, one half of the invention has a groove to hold the keyway in position. As the bolts of the invention are tightened down, the keyway becomes locked in place.

Abstract: An electronic device has a screw nut. The screw nut is configured for fixation of a fastener. The screw nut includes an inner nut component, a cushioning component, and an outer nut component. The inner nut component has a screw hole portion configured for fixation of the fastener. The cushioning component is sleeved on the inner nut component. The outer nut component is sleeved on the cushioning component. The cushioning component is connected between the inner nut component and the outer nut component so that the inner nut component is movably connected to the outer nut component.

Abstract: This invention generally relates to the field of nonferrous metallurgy, namely to titanium alloy materials with specified mechanical properties for manufacturing the aircraft fasteners. A stock for high strength fastener is manufactured from wrought titanium alloy containing, in weight percentages, 5.5 to 6.5 Al, 3.0 to 4.5 V, 1.0 to 2.0 Mo, 0.3 to 1.5 Fe, 0.3 to 1.5 Cr, 0.05 to 0.5 Zr, 0.15 to 0.3 O, 0.05 max. N, 0.08 max. C, 0.25 max. Si, balance titanium and inevitable impurities, having the value of aluminum structural equivalent [Al] eq in the range of 7.5 to 9.5, and the value of molybdenum structural equivalent [Mo] eq in the range of 6.0 to 8.5, where the equivalents are defined by the following equations: [Al] eq=[Al]+[O]×10+[Zr]/6; [Mo] eq=[Mo]+[V]/1.5+[Cr]×1.25+[Fe]×2.5.

Abstract: An adjustable axle retaining structure is disclosed. The structure includes an axle receiving feature on a first leg of a fork assembly and a retaining sleeve within a clamping member on a second leg of the fork assembly. An axle is inserted through the clamping member, the wheel hub and coupled with the axle receiving feature. A component of the axle is tightened thereby moving the retaining sleeve partially out of the clamping member and toward the wheel hub until the wheel hub is in contact with both the retaining sleeve and the axle receiving feature, wherein the moving of the retaining sleeve allows the axle to radially couple the wheel hub with the fork assembly without modifying a preestablished geometry of the fork assembly.

Abstract: Provided herein are titanium alloys that can achieve a combination of high strength and high toughness or elongation, and a method to produce the alloys. By tolerating iron, oxygen, and other incidental elements and impurities, the alloys enable the use of lower quality scrap as raw materials. The alloys are castable and can form ?-phase laths in a basketweave morphology by a commercially feasible heat treatment that does not require hot-working or rapid cooling rates. The alloys comprise, by weight, about 3.0% to about 6.0% aluminum, 0% to about 1.5% tin, about 2.0% to about 4.0% vanadium, about 0.5% to about 4.5% molybdenum, about 1.0% to about 2.5% chromium, about 0.20% to about 0.55% iron, 0% to about 0.35% oxygen, 0% to about 0.007% boron, and 0% to about 0.60% other incidental elements and impurities, the balance of weight percent comprising titanium. There exists an unmet need to produce titanium alloys for use in aerospace applications which have a refined equiaxed grain structure.

Abstract: A tolerance compensation arrangement for fastening first and second components with compensation of tolerances between the components. The arrangement comprises a base element having a first element with a first inner thread, a second element with a second inner thread, a supporting element arranged in between, and an adjustment unit with a threaded sleeve with an outer thread and a dragging unit at least partially arranged in the sleeve. The outer thread forms a first thread pairing of a first thread direction with the first inner thread. A fastening screw, can be screwed into the second inner thread via a second thread pairing of a second thread direction opposite to the first thread direction. The fastening screw can be connected to the adjustment unit via the dragging unit so that, during the rotation of the fastening screw, the adjustment unit co-rotates and is moved into abutment with the first component.

Abstract: A device for compensating of tolerances between a first component and a second component is described. The device may have an elastic centering arrangement which is provided for centering the device in a nominal position on the first component, which may be formed for this purpose.

Abstract: A bolt includes a shank having a first end, a second end, a first external thread proximate to the first end, and a second external thread proximate to the second end. The first external thread twists in a first direction, the second external thread twists in a second direction, and the first direction is different from the second direction. The first external thread includes a minor diameter, the second external thread includes a major diameter, and the minor diameter of the first external thread is greater than the major diameter of the second external thread.

Abstract: A spacer assembly for spaceably coupling a first and second component with a threaded connection bolt, each one of the first and second component provided with one or more fitting apertures. The spacer assembly includes a support member, a base member, and a spacer member having resilient friction elements configured to provide an interference fit engagement with a predetermined friction force with a threaded connection bolt, during use.

Abstract: An adjustable axle retaining structure is disclosed. The structure includes an axle receiving feature on a first leg of a fork assembly and a retaining sleeve within a clamping member on a second leg of the fork assembly. An axle is inserted through the clamping member, the wheel hub and coupled with the axle receiving feature. A component of the axle is tightened thereby moving the retaining sleeve partially out of the clamping member and toward the wheel hub until the wheel hub is in contact with both the retaining sleeve and the axle receiving feature, wherein the moving of the retaining sleeve allows the axle to radially couple the wheel hub with the fork assembly without modifying a preestablished geometry of the fork assembly.

Abstract: A barrel nut for a fastener is disclosed. The barrel nut is configured to prevent axial movement of the fastener relative to a structure on which the fastener is installed. The barrel nut comprises a first part and a second part pivotable relative to the first part.

Abstract: To provide a retainer having excellent moldability and durability while having a predetermined pull-out load and predetermined rotational torque. The retainer includes a nut main body 10 having a female thread 11, longitudinal ribs 13 formed between a plurality of recessed portions 12 and 12 provided along an outer circumferential surface of the nut main body 10, transverse ribs 14 formed between a plurality of recessed portions 12 and 12 provided on the outer circumferential surface of the nut main body 10 along an axial center direction, and the longitudinal ribs 13 and the transverse ribs 14 are connected to each other. Then, the longitudinal ribs 13 and the transverse ribs 14 form a frame structure.

Abstract: A fastening system for securing a component includes a first securing element having an engagement end and external toothing, a second securing element having elastic clamp members arranged about a common axis and having internal toothing facing the axis, and a fixing member. The clamps members assume a radial position relative to the axis that is variable due to their elasticity. The clamps are designed such that the second securing element can be pushed onto the engagement end such that the teeth of the engagement end and the clamps snap into each other. The clamps move from a first radial position to an external second radial position to engage or disengage a snapped-in state when shifting the external toothing and the first internal toothing to each other.

Abstract: A multi sectioned nut is operable to attach to a threaded fastener. The multi sectioned nut includes a plurality of multi sectioned threaded nut sections and a turn-lock formed on at least one end of the plurality of threaded nut sections. A cage is detachably coupled to the plurality of nut sections operable to spring open on a side opposite the cage to allow the threaded fastener to pass through. The turn-lock is inserted into a strut slot and rotated to removably attach to the strut slot. According to one embodiment, the multi sectioned nut may include at least two sections.

Abstract: A mounting device or bracket for paneled building surfaces is disclosed. The mounting bracket includes an upper wall in the form of a flat surface for supporting various types of attachments. An elongated mounting slot extends through the upper wall, and the mounting bracket includes an elongated nut receptacle that is positioned below this elongated mounting slot. With an attachment being positioned on the upper wall, an attachment fastener may be directed through the attachment, then through the elongated mounting slot, and then may be threadably engaged with a nut that is positioned within and movable along the nut receptacle in its elongated dimension. The elongated configuration of the mounting slot and nut receptacle provides adjustability for the position of the attachment fastener relative to the mounting bracket, including after the mounting bracket has already been installed on the building surface.

Abstract: A quick lock assembly contains: a locker and a drive socket. The locker includes two clamp elements and a C flexible retainer, each clamp element has a semicircular clamping portion, a press extension, and a rotatable connection portion. The semicircular clamping portion has two semicircular grooves so that when the two clamp elements are connected, two circular orifices are formed by four semicircular grooves of the two clamp elements. Each semicircular groove has inner threads so that when the two clamp elements are connected, the four semicircular grooves retain with a screw rod, and inner threads of the four semicircular grooves screw with outer threads of the screw rod. The C flexible retainer retains the two semicircular clamping portions. The drive socket includes a fitting portion and a driving portion, the fitting portion has an accommodation chamber with a recess, and the driving portion has an aperture.

Abstract: The invention includes a clip, and the clip includes a head and one or more clip surfaces for contacting the component to be held or an element on which the component is to be held. The clip surface faces the head at a distance therefrom, and a clamping part is provided which supports the head from the head side facing the clip surface or is connected to the head, the clamping part having a contact surface which faces the clip surface. The invention further includes a spring which is arranged so as to pre-tension the contact surface away from the head in the direction of the clip surface.

Abstract: A quick connect nut contains: a body including a first locking part, a second locking part, and a flexible C-shaped retainer. The first locking part includes a first forcing face, a first tilted face, a first peripheral groove, a first semicircular orifice having first inner threads, at least one first protrusion, and at least one first arcuate notch. The second locking part includes a second forcing face, a second tilted face, a second peripheral groove, a second semicircular orifice having second inner threads, at least one second protrusion, at least one second arcuate notch, and a second through hole. When the first and second locking parts lock together, an angle is defined between the first and second tilted faces so that a width of an expanding opening between the first and second locking parts is more than an outer diameter of the threaded rod.

Abstract: Corresponding threaded mechanical fasteners are automatically aligned with an alignment guide. The alignment guide includes a tapered cavity defined in a housing. As the threaded mechanical fasteners are moved towards one another to mate, the tapered cavity in the alignment guide causes the threaded mechanical fasteners to align with each other. The mechanical fasteners can connect a modular rechargeable battery to a battery receptacle in a vehicle.

Abstract: A bicycle lock includes a U-shaped body and a pivotal portion pivotably connected to the first end of the U-shaped body. A head is formed on the second end of the U-shaped body and includes a lock unit received therein. The lock unit includes a nut and a core unit which is co-rotated with the nut. The nut is rotated by using a key. The core unit includes a core and a restriction plate which is co-rotated with the core and includes a notch. A safety unit is received in the lock unit and includes an engaging member and a resilient member which biases the engaging member to be engaged with a notch of the restriction plate to prevent the core unit from being rotated. The engaging member includes a protrusion which contacts the outer periphery of the nut to prevent the nut from being rotated by unauthorized tools.

Abstract: A system is disclosed which utilizes a stabilization disk 30 or rigid cup containing adhesive which is bonded to an underside of a circuit board and then bolted to a chassis of a piece of military electronic equipment, so as to create a mounting location between the circuit board and the chassis where the circuit board is lacking a regular fastener receiving mounting hole therethrough.

Abstract: A tool-free blade change system in one embodiment includes a handle, an arbor bolt including a keyed portion configured to mate with a keyed bore of the handle to restrict rotation of the handle with respect to the arbor bolt, a blade washer defining a plurality of washer teeth which enmesh with the body teeth so as restrict rotation of the handle with respect to the blade washer in one direction while allowing rotation of the handle with respect to the blade washer in another direction, and a biasing member configured to bias the handle downwardly toward the blade washer, wherein the handle is axially movable with respect to the blade washer between a first position whereat the plurality of body teeth are enmeshed with the plurality of washer teeth and a second position whereat the plurality of body teeth are spaced apart from the plurality of washer teeth.

Abstract: The invention relates to a shading device for an architectural opening comprising a shade, a drive unit for extending and retracting the shade between a first and second end position, a spindle, a first end stop, stationary connected to the spindle near a first end of the spindle and at least one travelling nut, movably arranged on the spindle and operatively connected to the drive unit so as to move towards, respectively away from the first end stop as the shade is extended, respectively retracted. The travelling nut is articulated in circumferential direction into segments, with at least two segments being detachably connectable to each other at one of their ends.

Abstract: A turn limited wheel lug nut and nut cap combination is provided. The combination includes a lug nut for retaining a wheel on a vehicle. The lug nut has an external lobe. The combination also includes a nut cap, which is turnable with respect to the lug nut. The nut cap has an internal cam, which cooperates with the external lobe to locate the nut cap with respect to the lug nut with not more than a partial turn. The nut cap also has a stop, which cooperates with the external lobe to limit the partial turn of the nut cap with respect to the lug nut. And, the nut cap has a retention feature, which cooperates with the external lobe to retain the nut cap on the lug nut.

Abstract: The invention relates in first instance to a nut having a first part (11) which has a first through opening (O1), 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 bridge sleeve has at each extreme end of the bridge sleeve, a multi-component stabilizer. One component of each stabilizer includes an inner cylindrical contacting surface having a diameter that changes as this respective component of the stabilizer moves axially relative to at least one other component of the respective stabilizer.

Abstract: An insert is configured for anchoring within a cored panel and has a wide flange on one end, a sacrificial cover and threaded pin on its opposite end and a nut captured therein. The panel is prepared by forming a countersunk hole therein and filling or coating such opening with an adhesive. The insert is fitted into the hole such that the flange is positioned against one surface of the panel while the sacrificial cover and threaded pin protrude from the opposite surface. A screw fixture is threaded onto the threaded pin to maintain the insert in place while the adhesive cures. Subsequent removal of the screw fixture and sacrificial cover completes the anchoring process and exposes the nut that is captured within the insert for receipt of an appropriate fastener.

Abstract: A method of tightening and loosening threaded connectors in an object includes threadingly connecting a nut with a bolt introduced in the object with interposition of a washer between the nut and the object, turning the nut by a tool to tighten or loosen the bolt in the object with interposition of the washer, forming the washer with an outer body having a radially inner opening larger than a diameter of the bolt and radially outer surface adapted to absorb a reaction force of the tool, optionally also with a radially inner segment engageable with a thread of the bolt and connectable to the radially outer body with a limited axial frictional movement relative to the outer body, and optionally also with a spacer locatable between the radially inner segment and the nut, interposing only said radially outer body of the washer between the nut and the object for regular applications, optionally interposing the radially outer body and the radially inner segment together between the nut and object for applications w

Abstract: A polymeric fastener includes a body having multiple sides adapted to accept a tool for applying torque to the body to axially rotate the body with respect to a body longitudinal axis. A flange integrally connected to the body extends perpendicular to the longitudinal axis. A wave-shaped washer integrally connected to the flange has multiple valleys interposed between multiple oppositely directed peaks. Multiple triangular shaped frangible connectors integrally join the flange to the wave-shaped washer. Each frangible connector is integrally connected at a first end to the flange, and is integrally connected at an opposite connecting tip to an individual one of the peaks. The connecting tip has a reduced thickness compared to the first end to induce fracture of each frangible connector at the connecting tip.

Abstract: A supporting apparatus, configured to support a heat dissipating device, includes a bracket, two adjusting structures, and two mounting portions. Each of the two mounting portions defines a mounting hole. Each of the two adjusting structures is engaged in each of the mounting holes and includes an adjusting member and an installation member engaged with the adjusting member. Each of the adjusting members defines a through hole. The two adjusting members are rotatable relative to the two mounting portions from a first position to a second position. When the adjusting members are in the first position, a first line is running through the two through holes. When the adjusting members are in the second position, a second line is running through the two through holes, and a length of the first line is less than a length of the second line.

Abstract: A clinch nut for attachment to a plastically deformable metal substrate is provided. The clinch nut comprises a body portion with a central axis and a punch portion extending from the body portion and coaxial with the central axis. The body portion includes an annular-shaped surface encircling the central punch portion. The annular-shaped surface includes a plurality of spaced apart lugs encircling the central punch portion. The plurality of lugs each includes a contact surface with a recessed portion where the contact surface engages the metal substrate. A first portion of the contact surface is biased outwards from the central axis upon insertion in the metal substrate to form at least one lug flare during attachment of the nut to the metal substrate. A portion of the metal substrate is entrapped between the at least one lug flare and the body portion.

Abstract: A thread repair assembly is provided. The thread repair assembly comprises a cutting-nut housing including a first axial end, a second axial end and an internal cutting-nut interface, the first and second axial ends each having an opening. The thread repair assembly further includes a cutting nut at least partially enclosed by the cutting-nut housing and including a plurality of cutting threads configured to engage a threaded element when the assembly is urged in a first axial direction and disengage the threaded element when the thread repair assembly is urged in a second axial direction opposing the first axial direction.

Abstract: A fastener includes a nut having an anterior portion, a posterior portion and a threaded bore with a center axis extending from the anterior portion to the posterior portion, the outer surface of the posterior portion having an annular camming surface concentric with the center axis, the camming surface having a radius that decreases along the direction of the center axis away from the anterior portion toward the posterior portion; and a sleeve having a first end having an internal annular camming surface that engages the nut camming surface concentrically with the center axis and a second end having a thrusting surface. Tightening the fastener on an externally threaded member applies a force to the thrusting surface parallel to the center axis resulting in the nut camming surface and the sleeve camming surface cooperating to compress a portion of the threaded bore toward the threaded member.

Abstract: An injection molded part accommodates a threaded fastener and includes a metal insert. The insert defines a longitudinal axis and has an end face and an outer peripheral surface. A cutout extends from the end face and through the insert to permit the threaded fastener to extend therethrough. A plastic body surrounds the outer peripheral surface and has a threaded fastener contact face. The threaded fastener contact face of the plastic, body is recessed at a recessed distance below the end face of the insert which has a spring constant with respect to the longitudinal axis. The recessed distance and the spring constant are selected to deform the insert in response to a stress force applied to the end face thereof by the threaded fastener to cause a pregiven component of the stress force to be introduced into the threaded fastener contact face of the plastic body.

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 fastener is disclosed for use in a high vibration application wherein the fastener is engaged to a blind hole. The fastener includes a lock washer including wedge locking action fastening features and a head of the fastener including mating wedge locking action fastening features. The wedge locking action fastening features include a greater inclination than a pitch angle of the fastener such that the fastener is prevented from backing out.

Abstract: A locking and unlocking nut structure contains a body including a through hole, a diameter of the through hole being larger than that of a screw rod (tube), the body also including a semi-circular recess with a starting segment and a stopping segment, the body further including a slot and an diameter-decreased screw section; a slidable block retained in the semi-circular recess and moving between the starting segment and the stopping segment, the slidable block including first threads, while the slidable block is fixed on the starting segment, a distance from the first threads of the slidable block 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).

Abstract: A thread-producing nut for a screwed connection, wherein a core hole which is provided with thread turns is designed for positively locking, frictionally locking and releasable connection to an, in particular, cylindrical bolt or pin, in such a way that the thread turns have completely formed thread turns in certain sections when viewed in the circumferential direction and that free spaces with thread turns which are formed incompletely in terms of their height are provided between the completely formed sections of the thread turns. Furthermore, a blank for manufacturing the nut and a screwed connection composed of such a nut and a bolt are disclosed herein.

Abstract: This method of tightening a threaded fastener (6) to a predetermined torque comprises steps in which: axial and rotational coupling is begun, by surface shrinking to a tight fit, of the threaded fastener (6) to a tightening member (2) capable of turning the threaded fastener (6) and thereby tightening it, the tightening member (2) and the threaded fastener (6) being able, from an initial coupled configuration between the tightening member and the threaded fastener, to remain rotationally coupled at a rotary drive torque, transmitted by the tightening member to the threaded fastener, that is less than the predetermined tightening torque, and to be rotationally decoupled from each other at a rotary drive torque, transmitted by the tightening member to the threaded fastener, that is equal to the predetermined tightening torque; and from this initial coupled configuration, a rotary movement is applied to the tightening member (2) up to a rotary drive torque, transmitted by the tightening member (2) to the threade

Abstract: A fastener system is provided. The fastener system includes a pair of nuts having a beveled end and opposed flats, a nut housing having a cavity, the cavity including an end wall with an aperture and a tapered interior portion to engage the beveled end, and opposing internal flats to engage the nut flats, a resilient member to urge the beveled ends against the tapered portion; and retaining element. The nuts may include tapered thread edges to accommodate damaged male threads, or cutting thread edges to repair damaged mail threads.

Abstract: The present invention relates to both a proceeding and means for, in connection with hole making in a wall (1), for the mounting of items on the moisture-proof walls (1) of a wet area by means of an expandable mounting element (2), providing sealing of the hole. According to the invention, in addition to an expansion (I) of the mounting element (2) behind said wall (1), there is also provided an internal expansion (II) of the mounting element (2) in the receiving hole (3) of the mounting element (2) in question in the wall (1). There is furthermore provided a liquid-proof cover (III) around the entire mounting element (2) in question introduced and expanding in said receiving hole (3).

Abstract: The present invention relates to a lock nut which is fastened between a bolt and a nut and prevents the bolt and nut from loosening, comprising: a nut body having a fastening hole for fastening onto the bolt; a pair of first projecting parts which are formed projecting from one of the surfaces of the nut body and form a first slot having a first orientation such that the nut body can deform resiliently when the bolt and the nut are fastened; and a pair of second projecting parts which are formed projecting from the other surface of the nut body and form a second slot having a second orientation different from the first orientation, and the invention relates to a fastening unit comprising the lock nut; and provided is a bolt-and-nut loosening prevention structure having an improved loosening-prevention function.

Abstract: A pivoting hub nut, or hub clamp, for manually securing an object to a rotatable shaft provides a first hub defining a first radial slot and a second hub pivotally attached to the first hub defining a second radial slot. A first handle extends from the first hub, and a second handle extends from the second hub. A latch is disposed on the clamp for selectively locking the clamp in a closed position. An axial bore is defined along the centerline, or hub axis of rotation, of the clamp. The clamp includes a threaded region facing the axial bore for engaging corresponding threads on the shaft. Upon installation of the clamp onto the shaft, the clamp can be rotated relative to the shaft in a closed position for adjusting the longitudinal, or axial, placement of the clamp on the shaft, and the clamp can be tightened against a wheel rim or other object for securing the object on the shaft.

Abstract: A hinge assembly for a toilet seat, the hinge assembly comprising a hinge post for pivotally supporting the toilet seat on a toilet bowl, and a bolt embedded in the hinge post and configured to extend through an opening in the toilet bowl, the bolt having thereon a plurality of projections extending into the hinge post to distribute to the hinge post forces applied to the bolt.

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: A lock system having a bolt wherein a plurality of locking tabs are along a length of the bolt spaced a distance apart, a first track is along a portion of the length of the bolt, an inner nut having an inner channel, wherein threading is on an outer surface of the inner nut and a first mating tab is in the inner channel, the first mating tab slides along the first track as the inner nut slides over the bolt and the first mating tab can slide between a pair of locking tabs on the bolt when the inner nut is rotated in a first or second direction to secure the inner nut in a position along the length of the bolt, and an outer nut having an inner channel with threading and is adapted to removably thread onto the inner nut.

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.