Abstract: A screw structure to be used exclusively for fastening a wooden plate mainly has a screw shank helically disposed with squared threads, wherein a shaft flange is disposed at the bottom end of the screw shank to be parallel or slanted to the longitudinal axis of the screw shank between the upper and the bottom rims of the third and fourth threads; the shaft flange is in a convex trapezoid shape and is positioned vertically along the shank to make a pointed or planar cut so as to reduce friction for a smoother driving, an easier and labor-saving operation.

Abstract: A fastener having an aligning lead thread that does not follow the helical pattern of the fill threads around the shank of the fastener. The aligning lead thread is located on the shank distant from the first full thread to enable the engage the threads of a receiving member to pull the fastener elements into alignment rather than a standard lead thread which becomes trapped behind the threads of a receiving member.

Abstract: The present invention permits a screw or male member to align prior to entering a threaded section and being driven. This alignment can avoid cross threading of the screw and the internal threads as often happens with power driven screws. The present invention generally includes a device with an unthreaded section and a threaded section. A screw or male member passes through the unthreaded section prior to entering the threaded section and causes the screw or male member to be aligned before being driven.

Abstract: The object of the present invention is to provide a bolt that effectively prevents gouging, seizure and racing between the bolt and nut without the aid of a guide boss and is effective when combined with the case nut.

Abstract: An object of the present invention is to provide a bolt and a nut capable of appropriately adjusting the orientation of the bolt and fastening the bolt and the nut without fastening defects such as slipping and seizure even when the bolt is obliquely inserted into the nut.

Abstract: A transpedicular screw having a round head and thin neck so that when the head encounters resistence, such as the harder cortex of a pedicle, it bends toward the softer axis of the pedical, thus avoiding violation of the pedicle cortex. The screw is inserted following the formation of a hole toward the pedical axis using a guide rod and a pin. Preferably this hole is made at an angle of approximately 35° with respect to the perpendicular and extends just to the pedical. The screw has a threaded body behind the neck and a tail formed to receive a tool that facilitates rotation of the screw into the pedical.

Abstract: A transducer mounting device comprised of a monolith of moldable material overlying and supporting a self-tapping screw at one end for coupling to a target such as a machine casing or bearing housing and a fabricated insert at an opposite end for mating with a monitoring transducer. In a further preferred form a transducer mounting device is comprised of a preform including an internal cavity overlying a magnetic component, an adhesive interposed between the magnetic component and a target such as a machine casing or bearing housing at one end for magnetically and adhesively bonding said preform to the target and a threaded member disposed at an opposite end of the preform for mating with a monitoring transducer.

Abstract: A self-tapping threaded insert (20) for threadedly mounting another component by a threaded central connector (50). An assembly (24) of the insert (20) and a mounting member (22) for threadedly mounting the insert are assembled by a method for mounting the self-tapping threaded insert. The insert (20) has a threaded shank (26) that is threaded into a partially tapped hole and has a shank end with flutes (32) of a construction that provides self-tapping. Upon final torquing, a locking flange (42) of the insert (20) locks against a surface (46) of the member (22) as threads of the insert shank (26) are completely engaged with the hole.

Abstract: A pin with threads that extend along a portion of a stem of the pin interact with framing members as the pin is driven through the framing members. The interaction of the threads with the framing members cause the pin to rotate as the threads pass through the framing members and fastens the framing members together. A pin with curved wings that extend along a portion of a stem of the pin interact with framing members as the pin is driven through the framing members. The interaction of the wings with the framing members cause the pin to rotate as the wings pass through the framing members and fastens the framing members together.

Abstract: Described herein is a self-threading screw, designed to be inserted in a hole of appropriate size made in a sheet of metal (or other metallic body), which has at the free end of its shank six projections (“formers” or “shapers”) of prismatic shape designed to thread by rolling the wall of the hole in which the screw itself is inserted.

Abstract: The present invention permits a screw or male member to align prior to entering a threaded section and being driven. This alignment can avoid cross threading of the screw and the internal threads as often happens with power driven screws. The present invention generally includes a device with an unthreaded section and a threaded section. A screw or male member passes through the unthreaded section prior to entering the threaded section and causes the screw or male member to be aligned before being driven.

Abstract: Threaded bolt having a distal insertion end and a proximal head-end and a threaded shank extending In between, said shank having a longitudinal axis, wherein the distal insertion end comprises a first distal portion that comprises the outermost distal end of the distal insertion end, said outer-moat distal end being eccentrically located with respect to the central axis of the shank, the first distal portion defining a circumferentially continuous, smooth, non-threaded surface, in which a second distal portion, in proximal direction, connects to said first distal portion, said second distal portion defining a circumferentially continuous, smooth, non-threaded, right-circular cylindrical surface, which is located centrically with respect to the central axis of the shank, wherein the first distal portion has been provided with surfaces, the generatrix of which has a straight course and is inclined with respect to the longitudinal axis.

Abstract: Thread-forming screw comprising a head and a shank, the shank having a thread and a thread-forming zone at the end opposite to the head, the thread-forming zone also having a thread portion, characterized in that the shank at the end opposite to the head has a spherical portion with a maximum diameter in a plane perpendicular to the axis of the shank which corresponds approximately to the mean diameter of the thread of the shank.

Abstract: A self-tapping fastener or fastening peg secures a weatherseal to a mounting surface of an automotive vehicle. A pointed, conical nose pierces the weatherseal to form an opening. In the preferred embodiment, the fastening peg is rotated at a first velocity as it is axially advanced toward the weatherseal to create an opening. The fastening peg is further axially advanced and rotated at a second velocity to advance a first flange through the pierced opening, thereby securing the fastening peg to the weatherseal. The weatherseal is then secured to a vehicle mounting surface by advancing a locking assembly through a pre-formed opening in the mounting surface.

Abstract: A hole-shaping and thread-forming screw (1) has a non-cutting hole-shaping end section (2) that ends in a point, a haft section (4) provided with a thread (3) and an engagement section (5). The non-cutting hole-shaping end section (2) tapers towards its end. The whole screw is made of a stainless material, in particular its end section (2). When the screw (1) is driven in, a hole is haped without cutting into the workpiece (7) and is then threaded by the screw (1) itself.

Abstract: A fastener having an aligning lead thread that does not follow the helical pattern of the fill threads around the shank of the fastener. The aligning lead thread is located on the shank distant from the first full thread to enable the engage the threads of a receiving member to pull the fastener elements into alignment rather than a standard lead thread which becomes trapped behind the threads of a receiving member.

Abstract: The object of the present invention is to dissolve effectively the problems of the encroaching, the seizure, and the racing.

Abstract: A skull pin has a ceramic insulating portion between a titanium driving portion and a titanium tip portion. The driving portion of the skull pin terminates in a sleeve, and the ceramic insulator with a solid cylindrical shape is received such as with a press fit in the sleeve. The preferred ceramic material is zirconia. The tip portion has an opposing outer sleeve which receives the distal end of the ceramic insulator such as with a press fit. The ceramic insulator is believed to reduce or eliminate a burning sensation felt by patients during Magnetic Resonance Imaging (MRI), which may be caused by transmission of high (radio) frequency electrical signals through the prior art skull pins.

Abstract: The object of the present invention is to prevent the encroaching and the seizure between the bolt and the female screw caused by an oblique screwing of the bolt into the female screw when the bolt and the female screw are fastened together. Another object of the present invention is to manufacture the bolt in a low cost, by using said bolt, the encroaching and the seizure between the bolt and the female screw caused by a oblique screwing of the bolt into the female screw are certainly prevented. Said objects may be attained by a bolt consisting of a column part and a polygonal pillar part extending from an end of said column part wherein a complete thread is formed on said column part and a screw blade continuing to said complete thread is formed on said polygonal pillar part.

Abstract: Self-tapping screw having an at least partially non-round enveloping curve for the thread and having a penetrating section and a retaining section, it being the case that the penetrating section contains a plurality of successive thread stages which each have at least one thread turn and, along the thread stage, have essentially the same, aligned enveloping curve which runs either cylindrically or elliptically, the thread stages with an elliptical enveloping curve (elliptical thread stage) being combined such that the major axes of the successive elliptical thread stages, forming a stage group, are offset with respect to one another.

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

Abstract: The invention comprises a self-screwthread-forming screw of corrosion-resistant steel, which screw is partially precipitation-hardened. The invention also concerns a process for producing such a screw in which the screw is firstly shaped by pressing and rolling or by screwthread rolling or cutting or in other known fashion characterized in that the screw is then partially precipitation-hardened.

Abstract: A connector having apertures to be used to secure different pieces of construction material in relation to each other is provided with structure to hold a nail thereto. This structure permits the nail to be brought into selective alignment with the aperture allowing the nail to be driven home without the workman holding the nail. The invention includes aperture engagement structure which is located in the aperture of the connector. The nail is held in a fastener engagement structure, which has the structure of a sleeve. The fastener engagement structure is attached to the aperture engagement structure on their common first side by a hinge. The fastener engagement structure further has a male portion located on its second side. The aperture engagement structure further has a female portion located on its second side. In a first configuration, the nails are held flat against the body of the connector.

Abstract: The nut has a tool engaging region or a hexagonal region and a flange region provided on a thread end of the hexagonal region. A sloped step sloping at an angle to the center line of the nut is provided on the thread end. The sloped step (surface) is thus shaped of the annular form on the inner wall of the nut adjacent to the nut opening which faces outwardly of the nut and substantially extends along the loop.

Abstract: A novel fastener member and a novel method of assembly are provided for engagement of the fastener member with a female member having an internally threaded bore. The fastener member includes a threaded shank portion and a novel point at a work entering end thereof. The point includes a radiused portion which is engaged within the female member threaded bore to start engagement of the fastener member therewith. In certain embodiments, the point further includes an unthreaded portion, which has a diameter that is slightly less than a minor diameter of the shank portion, connecting the radiused portion and the threaded portion. The radiused portion has a maximum diameter which is slightly less than a minor diameter of the threaded bore. The radiused portion may take many forms and, for example, may be spherical; partially spherical; or formed from a predetermined number of radiused portions integrally formed with each other.

Abstract: A masonry anchor is provided with a reaming portion which includes recessed portions for defining reservoir regions for accumulating debris generated by the reaming operation when the anchor is installed within a masonry structure. The accumulation of the debris within the reservoir regions reduces torsional friction and installation torque characteristic of the anchor installation operation. Masonry anchors which are self-tapping or self-threading and which do not have reaming portions operatively associated therewith can also have such recessed reservoir structure defined thereon for such similar dust and debris accumulation and discharge purposes.

Abstract: A bolt is provided in the present invention. When said bolt is screwed in a nut, said bolt is guided by engaging the spiral guide groove of said guide boss with the thread of the nut to prevent the encroaching, the seizure, or the racing between the bolt and the nut.

Abstract: A thread joint for percussive drilling equipment includes first and second percussive drill string components, the first component including a spigot. An external thread is formed on the spigot, and an internal thread is formed on the second component. Each of the internal and external threads includes an end section gradually transforming into a full thread section. The end section includes a pair of flanks, and the full thread section also includes a pair of flanks. Both flanks of the end section have a different profile than the corresponding flanks of the full thread section.

Abstract: A novel cable anchor for retainment and attachment of cables and tubing which utilizes a one-piece A-shaped rigid body (11) comprising of a U-shaped top (12) having the front, back and bottom open having two extensions one W-shaped left side extension (13) and one W-shaped right side extension (14) both extensions extending in a downward direction having 40 degrees more or less between the extensions. The W-shaped extensions having a barb surface located at the extreme outer surfaces of the W-shape. The U-shaped top (12) having an attachment hole (15) located at the top center. When manual pressure is applied on the outer surfaces of the extensions causing the extensions to move closer towards each other until the extensions are touching each other in the closed position thereby allowing the A-shaped rigid body (11) to be received in a bored hole of a substructure. The U-shaped top (12) may be flattened to facilitate the attachment of a separate cable clip or the like.

Abstract: The invention comprises a self-screwthread-forming screw of corrosion-resistant steel, which screw is partially precipitation-hardened. The invention also concerns a process for producing such a screw in which the screw is firstly shaped by pressing and rolling or by screwthread rolling or cutting or in other known fashion characterized in that the screw is then partially precipitation-hardened.

Abstract: A self-tapping fastener is provided. The fastener is formed from a blank having an odd number of lobes along a cross section taken perpendicular to its axis of rotation. The lobes define a relatively high out-of-round cross section along a tapered thread-forming zone, and a relatively low out-of-round cross section along the main body taken in a direction toward the drive head. Between the main body and tapered thread-forming zone is located an additional thread forming zone having an axial length of approximately one thread pitch and a cross section that conforms to the high out-of-round of the tapered zone. The maximum diameter (at the lobes) of the additional thread-forming section approximately matches that of the full-diameter main body section. A lower-diameter stabilizing section can be provided ahead of the tapered zone, adjacent the tip of the fastener.

Abstract: A fitting component for furniture or other elements, having fixing holes to receive fixing screws which are insertable in pre-drilled holes in the furniture element. Each of the fixing screws has a head and a shaft, the head having corrugations or knurls on the underside thereof. The shaft has a threaded section adjacent the head and a thread-free section at the end of the shaft. The thread-free section has a diameter corresponding to a diameter of the pre-drilled holes for pre-fixing of the fixing screws.

Abstract: A screw threaded fastener (103) has an elongate shank (122) with a drilling tip (104) at one end and a head (123) at the other end. A screw thread extends along at least a part of the length of the shank (122). The trailing flank (116) of the thread subtends an angle (B) relative to the axis (117) of the fastener which approaches 90° and is greater than the angle (C) subtended by the leading flank (115). The screw is for use in fixing sheets of material a1 to thin metal battens (5) and the angle between the trailing flank (116) and the adjacent thin metal section (18) of the batten (9), being reduced in comparison to a conventional thread form, lessens the distorting effect of the thread on the batten (9) under relatively high pull-out loads.

Abstract: A self-aligning, anti-cross threading fastener having first and/or second members with lead threads having a curved surface feature from the minor diameter to the major diameter which allows the surface of the lead threads to cam over the mating threads of the other member and thereby aligning collinearly the longitudinal axis of the two members. The initial presentation angle of the two threaded members may be restricted and therefore enhanced by providing a protruding diameter feature.

Abstract: An anti-cross threading fastener having a threaded shaft portion with a major diameter and a minor diameter, a leading end shaft portion devoid of screw threads and having a diameter less than the major diameter of the threaded shaft portion. The leading end shaft portion also includes a tip having an at least partially substantially curved surface, and a groove disposed about the shaft portion between the tip portion and the threaded shaft portion. A cylindrical shaft portion may be disposed between the tip portion and the groove. A portion of the threaded shaft portion tapers narrowingly toward the tip portion thereof, and the screw threads of the tapered threaded shaft portion have a flank angle greater than a flank angle of the screw threads of a non-tapered threaded shaft portion. The tapered screw threads may be formed of spaced apart lobes.

Abstract: The present invention provides a novel fastener member, stud, or other threaded member, for engagement with a female member, and the method of assembly thereof. The fastener member has a novel point which facilitates engagement of the fastener member in the threaded bore, greatly reduces the possibility of cross-threading and is especially suited for use in applications involving blind holes or the use of very thin threaded holes. The fastener member has a threaded shank portion. A point is provided at the end of the shank portion and includes an unthreaded radiused portion and a threaded transition portion between the shank portion and the radiused portion. The major diameters of the threads of the transition portion gradually lessen between the opposite ends thereof. The minor diameters of the threads of the transition portion gradually lessen between the opposite ends thereof. The radiused portion can be provided with a truncated end surface.

Abstract: A horizontal-mount bracket system for holding a sensor position with respect to a horizontal-mount bracket once the air gap is first established by the gauging layer method; and, in a second embodiment thereof, for locking the sensor position with respect to the horizontal-mount bracket, wherein the sensor may be removed and then reinstalled without use of any position setting procedure, yet the air gap is automatically precisely reset to its original value. First and second bracket members lay juxtaposed, wherein the first bracket member has a first sensor opening and the second bracket member has a second sensor opening. The first and second sensor openings allow free placement of the sensor body therein, and when laterally displaced, cause the sensor body to be pinched holdably to the multi-component bracket, which is attached to a flat horizontal surface of an engine.

Abstract: Disclosed is a bolt which has been contemplated to solve problems of prior bolts and to provide the bolt adapted to corrects its own position in a precise direction to permit normal fastening without failure such as slipping, seizure or the like even when the bolt is inserted slantingly into a mating female screw. The bolt comprises a constant diameter columnar portion having a smaller diameter than that of a bolt shank portion and formed on an end portion of the bolt shank portion, formed with normal screw threads, in a direction of insertion with a short tapered portion therebetween, and complete screw threads formed on the constant diameter columnar portion to be equal in pitch and thread groove depth to the normal screw threads on the bolt shank portion.

Abstract: A screw with two cut removing curved grooves has a head and a shank with a helical threads. The shank has two lengthwise grooves partially overlapping with each other, when viewed projectively from the horizontal surface or from the vertical surface of the center line or axis of the screw.

Abstract: A blank for a self tapping fastener, and corresponding fastener is provided. The blank defines an odd number of lobes along a cross section taken perpendicular to its axis of rotation. The lobes define a relatively high out-of-round cross section along a tapered thread-forming zone, and a relatively low out-of-round cross section along the main body taken in a direction toward the drive head. Between the main body and tapered thread-forming zone is located an additional thread forming zone having an axial length of approximately one thread pitch and a cross section that conforms to the high out-of-round of the tapered zone. The maximum diameter (at the lobes) of the additional thread-forming section approximately matches that of the full-diameter main body section. A lower-diameter stabilizing section can be provided ahead of the tapered zone, adjacent the tip of the fastener.

Abstract: A bolt provided with a pilot of the present invention is formed with a pilot portion, on the front end side of a shank portion, having an axis aligning with an axis of the shank portion. The pilot portion is formed with a guide thread portion continuous to the normal thread portion to about half portion of the pilot portion. The connecting portion between the normal thread portion and the guide thread portion has a connection thread portion having an outer diameter gradually reducing from the normal thread portion toward the front end portion of the pilot portion. According to such structure, workability can be improved.

Abstract: A method and apparatus for repairing a casting in a cold metal repair process includes a plurality of drilling fixtures which facilitate the creation of one or more lock receiving recesses positioned generally transverse to the casting crack. The lock receiving recesses are formed of a single sized circular bore combination having alternating double and single circular portions to maximize strength. A plurality of correspondingly configured metal locks are inserted into the lock receiving recesses to provide transverse metal locks drawing the casting portions on each side of the crack together. A plurality of threaded bores are formed along the remainder of the casting crack in overlapping spacing which receive a corresponding plurality of stitching pins. The stitching pins each define threaded shaft portions having pointed ends and undersized major pitch diameter threads adjacent the pointed ends.

Abstract: A lead-in point on an end of an externally threaded fastener has a shape in any axial section defined by a curve tangent to the inside of a cylinder formed about the thread axis. The cylinder is of a diameter smaller than the smallest permissible minor (inner) diameter of a mating internal thread, but preferably larger than the minor diameter of the external thread. The length of the lead-in point is preferably from one to three thread pitches. The curved surface of the lead-in point is such that at any practical angle of insertion (where thread engagement is possible), the dimensional characteristics of the lead-in point present only a curved surface (not an edge) for possible contact with the internal threads. This length also insures that the end of the fastener is small enough to feed into internal threads at all angles where such thread contact is effective in producing a threaded joint.

Abstract: An actuator for manipulating a bowden cable assembly of a lumbar support structure includes a housing having a longitudinal passage and a screw coupled to a cable and operable for moving in the housing passage. A threaded nut is operable for rotating and moving the screw through the housing passage. A barrel is configured for receiving the bowden cable assembly and is operable for providing movement of the cable of a bowden cable assembly completely therethrough and further operable for engaging a sleeve of the bowden cable assembly for preventing movement of the sleeve completely therethrough. The barrel is fixedly coupled to the housing to fix the movement of the bowden cable sleeve with respect to the housing passage such that movement of the screw in the housing is operable for drawing the cable through the fixed sleeve of the bowden cable structure for manipulating a lumbar support structure.

Abstract: A fastener temporarily attaches articles through aligned apertures in the articles including a nut plate allowing the articles to be assembled by one assembler. The fastener has a flange, a cylindrical sleeve, and a solid pin. The flange ensures that the fastener does not pass completely through the aligned apertures. The sleeve supports articles and couples with the flange on one end of the sleeve and the solid pin on the other end of the sleeve. The solid pin can support a nut plate and further engages the threads in the nut plate through friction. The juncture between the sleeve and the solid pin is formed to allow the pin to break away from the cylindrical sleeve when pressure is applied. A screw or other threaded fastener is inserted through the cylindrical sleeve and pressed against the solid pin. Once the solid pin breaks away, the threads on the screw engage with the corresponding threads on the nut plate.

Abstract: A wood screw is proposed for use with a material made mainly of plastic waste and wood chips. The wood screw includes a shank which has leading threads extending from the tip of the tapered portion to an intermediate point of the straight portion and have a first lead angle and a first thread angle. Trailing threads extend from the intermediate point toward a head and have a second lead angle and a second thread angle. The first lead angle is greater than the second lead angle, and the first thread angle is smaller than the second thread angle.

Abstract: A belt retractor for a vehicular occupant restraint system has a load-bearing frame and a stud for securing the belt retractor to a vehicle. The stud has a free end facing away from the frame, this free end being provided with a connecting projection. The connecting projection is provided with a guide pin for a nut adapted to be screwed on the stud.

Abstract: A self-aligning, anti-cross threading fastener having first and/or second members with lead threads having a curved surface feature from the minor diameter to the major diameter which allows the surface of the lead threads to cam over the mating threads of the other member and thereby aligning collinearly the longitudinal axis of the two members. The initial presentation angle of the two threaded members may be restricted and therefore enhanced by providing a protruding diameter feature.

Abstract: The fastening element has a threaded part (3) and in front of it a carrier part (4) with an elastic element (5). The carrier part (4) may be a different material, such as an elastic plastic, from that of the threaded part (3) and may be joined either firmly or releasably to it, the latter for instance by a screw or detent connection. The elastic element (5) can be attached in front of the threaded part (3) with the contrary thread (6) or at some other point in frictional or detent engagement, in that at the beginning of an assembly operation, the two parts (1, 6) to be screwed together are simply inserted axially into one another. The radially outer ends of the spring tongues (5) forming the elastic element can be located on a helical line in an extension of the thread course of the threaded part (3).

Abstract: A threaded fastener for securing a first material to a support member is provided comprising a tapping or tap screw point at a first end, a threaded shank with three separate leads, a first portion of the shank, adjacent to the tap screw point, being of a trilobular thread design, a second portion of the shank, distal from the tap screw point, being unthreaded, and a head at an end opposite the tap screw point having an enlarged diameter and a countersunk shape to reduce the likelihood of pull through of the fastener through said first material, yet to allow the head to be introduced flush with a surface of the first material.