Abstract: A bolt has an axis and a bolt plane perpendicular to the axis. The bolt has male bolt threads. Each male bolt thread has a bolt root and a bolt crest. Each male bolt thread forms axially interior and exterior male surfaces extending radially exteriorly away from the axis and forms a first angle with respect to the bolt plane. A nut has an axis and a nut plane perpendicular to the axis. The nut has female nut threads. Each female nut thread has a nut root and a nut crest. Each female nut thread forms axially interior and exterior female surfaces extending radially interiorly toward the axis and forms a second angle with respect to the nut plane. The first angle and the second angle are not equal.

Abstract: A threaded installation is provided. The threaded installation includes a nut, a bolt, and a housing. The housing includes a threaded hole. A first threaded connection is formed where the bolt is threadably coupled with the nut, and a second threaded connection is formed where the bolt is threadably coupled with the threaded hole. The first threaded connection is characterized by a first flank angle, ?2A, of threads of the bolt or threads of the nut. The second threaded connection is characterized by a second flank angle, ?3B, of threads of the bolt or threads of the housing. The flank angles, ?2A and ?3B, satisfy the following equation: k 2 = cos ? ( ? 2 ? A ) cos ? ( ? 3 ? B ) > 1 . 0 ? 0 .

Abstract: A screw includes a head having a top face and a conical bottom surface, a shank, and thread convolutions. A chip guiding channel is recessedly formed on the conical bottom surface. On the conical bottom surface are spirally disposed a cutting portion which has a plurality cutting units sequentially arranged in a spiral manner, thereby allowing the chip guiding channel to be surrounded by the cutting units along a spiral track. The spiral arrangement of the cutting units assists the head in cutting fibers of a workpiece which are wound around the head into small chips in a continuous and spiral severing manner to reduce drilling torque and resistance, and the spirally-defined chip guiding channel also facilitates a smooth removal of the chips, thereby allowing the head to fit level with a top surface of the workpiece and increasing a fastening effect.

Abstract: The present disclosure provides a lockable double shear dowel connector comprising two guide tubes, two dowels, two sleeves, an open end, and two orifices. The dowels are disposed adjacent to each other and adjacent to a joint between adjacent blocks of building materials. The present disclosure further provides kits and methods for using and installing the connectors disclosed herein.

Abstract: A male anti-cross threading fastener comprising: a substantially round shank having a lead end, a torque end, and a plurality of male threads around a circumference of the shank, the plurality of male threads comprising: a standard thread around at least a portion of the circumference of the shank and having a standard thread contour, wherein a width and a thread angle of the standard thread enables engagement with corresponding female threads, wherein the major diameter of the standard thread is between a lower major diameter limit and a higher major diameter limit; a transitional thread around at least a portion of the circumference of the shank and having a transitional thread contour with a width and a thread angle similar to the width and thread angle of the standard thread that enables engagement with corresponding female threads; an anti-cross thread around at least a portion of the circumference of the shank and having an anti-cross thread contour and an outside diameter configured to promote alignmen

Abstract: A floating connection fastening system employs a semi-flexible floating bushing having a sleeve that may have an axial slot which captures a fastener having a head, an unthreaded shank portion and a threaded portion. The sleeve may have an outer primary surface and a plurality of protuberances that project outward from the outer primary surface. An offset cap mounts to the bushing/fastener assembly and receives a driver bit. The offset cap defines an offset clearance for installation of the fastener and bushing. The floating connection is installed by driving the fastener through a non-load bearing member so as to form a bore and threadably engage a load bearing member. The floating bushing has a flange which engages the surface of the non-load bearing member, and the sleeve is entirely received in the formed bore.

Abstract: A compensating fastener assembly is configured to secure a fastener to a surface element. The compensating fastener assembly includes a compression limiter having a cylindrical main body and a flange, the cylindrical main body defining a channel and a longitudinal axis. The compensating fastener assembly further includes a spring defining a central passage. The central passage of the spring is configured to receive the main body of the compression limiter such that a first end of the spring is configured to be disposed adjacent the flange of the compression limiter.

Abstract: An anti-pullout and low-resistance screw includes a shank, a screw-in portion, a head portion, and a thread. The thread is helically formed around both the screw-in portion and the shank and includes a plurality of thread convolutions. Each thread convolution includes an upper tooth surface facing the head portion and a lower tooth surface facing the screw-in portion. At least one tapered pressing structure is designed on the screw-in portion and/or the shank to define at least one section with its outer diameter tapering towards the screw-in portion gradually. The tapered pressing structure extends from a bottom edge of the lower tooth surface along a longitudinal axis of the shank. The lower tooth surface has a lower tooth surface height that is greater than the thread height. An annular anti-pullout plane is formed on the shank between two adjacent thread convolutions to enhance the anti-pullout strength of the screw.

Abstract: A threaded connector system including a male threaded connector and a female part, where at least one of the outer surface of the male threaded connector and the inner surface of the female part includes at least one Z layer structure, including a Z seat, Z ridge, Z rib, Z tooth, Z snap lock, Z stack and Z channel.

Abstract: A stud clip assembly is provided. The stud clip assembly includes a clip having a mounting platform and a retention platform. The mounting platform includes a mounting bore that extends away from the retention platform and that defines a mounting aperture. The mounting aperture includes a threaded portion formed therein and a collar arranged at a first end thereof. The stud clip assembly further includes a fastening element configured to be threaded into the threaded portion of the mounting aperture. The collar is configured to be crimped onto the fastening element.

Abstract: A self-tapping screw (10, 30) comprising a drive (12) and a shank (14) bearing a thread comprising a main thread (16, 32), wherein the main thread (16, 32) has a maximum main thread external diameter (DAF) and a cutting area (F) and a supporting area (T) following in the direction of the drive (12), wherein the shank (14) has a threaded end (18) at an end opposite the drive (12), with the screw end (18) having a diameter (DE) of at least 20% of the maximum main thread external diameter (DAF), The shank further has, in the region of the screw end (18), a tap flute (20), wherein the tap flute (20) comprises at least two tapping thread turns (20a, 20b, 20c) which attain, in their external diameter (DAA), no more than 90% of the maximum main thread external diameter (DAF) and form a tap region in which the tapping thread turns (20a, 20b, 20c) have the same diameter development, and in addition in that the diameter of the main thread (16, 32) in the tap flute region (AB) is less than or equal to the diameter (DAA)

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

Abstract: A hybrid fastener assembly includes a body and a removable insert. The removable insert includes a first flange having a first circular hole. The body includes a receptacle, a second circular hole, a retention mechanism, and a plurality of lateral walls. The removable insert is accommodated in the receptacle and is inserted in a lateral direction perpendicular to a central longitudinal axis of the body. The second circular hole aligns with the first circular hole to form a channel for receiving the threaded fastener. The retention mechanism secures the removable insert inside the receptacle. At least two lateral walls include a snap lock for mounting the hybrid fastener assembly to a first component.

Abstract: A fastening system including a first sintered powder metal fastening component and a second metal fastening component. The first sintered powder metal fastening component has a first porous surface and a one-part adhesive in the first porous surface. The second metal fastening component has a second surface. The second surface is configured to frictionally engage with the first porous surface.

Abstract: A cap for a temporary fastener comprises a hollow, cup-shaped body and an inwardly tapered neck. The hollow body fits over a workpiece-engaging portion of the temporary fastener, and the neck extends from the hollow body. The tapered neck terminates in a hollow tip that is sized and configured to fit over aligned holes in the joined workpieces and to contact a minimal surface area of the outermost workpiece to reduce surface damage to the workpieces such that any damage will be removed when the holes are countersunk in the normal course of assembly.

Abstract: Potted-in inserts are provided for use as attachment points for securing objects to sandwich panels. The potted-in inserts comprise a shaft having a first outer diameter, a first end having a second outer diameter that is greater than the first diameter, a second end having a third outer diameter, and an inner bore extending through the first end, the shaft, and the second end. The inner bore having an inner diameter. A lattice structure is between the first end and the second end and in an area adjacent the shaft between the first diameter and the second diameter. The lattice structure is fixed to the first end, the second end, and/or the shaft. The lattice structure has a plurality of interconnected unit cells each comprising struts connected at nodes to define voids between the struts. The voids are sufficiently large to receive therethrough a potting compound.

Abstract: A fastener which includes a first portion of a shaft which defines threads, and a second portion of the shaft, which extends from the first portion of the shaft, includes a planar curved surface. A method for securing a fastener to an e-nut, which includes the step of inserting the fastener positioned within an e-nut into an opening defined by and which extends through at least two components to be secured together, wherein: a first portion of the shaft of the fastener defines threads; and a second portion of the shaft of the fastener, which extends from the first portion of the shaft, defines a curved planar surface.

Abstract: A ratchet toggle connector for fastening together two or more workpieces. The fastener includes an anchor ribbon and a retaining cap. The anchor ribbon includes an extended ribbon with an integrated gear rack, and an integral anchor with a pair of bendable tapered wings. The retaining cap houses a pawl and a slot sized and shaped to receive a free end of the extended ribbon. In use, the gear rack and pawl engage to resist retraction of the retaining cap when the extended ribbon is received in the slot, and the wings are configured to bend toward the extended ribbon to a collapsed state for passage of the anchor through an opening in a workpiece and to rebound to an expanded state following passage of the anchor through the opening, to prevent retraction of the anchor through the opening.

Abstract: A fastening element for connecting a first component to a second component may have a pin-like connecting element with a first fastening region and a second fastening region. The fastening element may also have a sleeve which is configured for insertion into a receiving opening of the first component. The fastening element may also have a compensation element which is provided with a receptacle for receiving the first fastening region and which is configured for insertion and adjustment in a longitudinal direction in the sleeve. At least one drive interface may be provided on the compensating element by which the compensating element can be adjusted in the longitudinal direction in the sleeve.

Abstract: A screw structure includes a screw and a washer mounted on the screw. The bottom face of the screw head is provided with a plurality of pressing portions. Each of the pressing portions has a top provided with a first plane and a bottom provided with a second plane having an area smaller than that of the first plane. Each of the pressing portions is provided with a first inclined face and a first steep arcuate face. The first inclined face is directed toward a clockwise direction of the screw when the screw is screwed. The first steep arcuate face is directed toward the external thread. When the screw is screwed into an article, the pressing portions press the washer, and an outer diameter of the washer is expanded outward and forms an expansion.