Abstract: Disclosed is an apparatus for retaining a saw blade set on an arbor. The apparatus may be an integrated dado nut assembly and may have a dado nut, a removable dado washer and a lockring. The dado nut is configured to be rotatably slidingly connected to the dado washer while providing for an axial force to be transmitted from the dado nut being rotated on the arbor through the dado washer to an outer blade of the saw blade set with a substantially full thread engagement. The integrated dado nut assembly is configured to be clampingly engaged by a lockring.

Abstract: A fastener may include a threaded shank and a head having a crown having a crown surface. The crown surface may define a crown plane with a central portion and a peripheral portion. The head further having a perimeter for being engaged by a tool for manipulating the fastener. The fastener having a protective coating positioned on the crown of the head and being positioned on the peripheral portion of the crown. The head and the shank may be formed of a first material having a first hardness measurement, and the protective coating may be formed of a second material having a second hardness measurement. The second material may be different than the first material and a magnitude of the second hardness measurement may be greater than the magnitude of the first hardness measurement.

Abstract: A rapid installation screw includes radially expanding threads. The screw may include a number of discrete thread segments removably affixed to a distal end of an internal shaft. Initially, the thread segments may together have an outer diameter that allows them to slide into a screw hole without engaging threads of the screw hole. Thereafter, a further downward force on the screw will disconnect the thread segments from the internal shaft so that the internal shaft can move axially down between the thread segments. The diameter of the internal shaft forces the thread segments radially outward into engagement with the threads of the screw hole. The internal shaft further includes ribs radially oriented around the internal shaft to fit in between the thread segments. Rotation of the screw head and internal shaft will exert torque on the thread segments, causing them to rotate as well, thus allowing the thread segments to unscrew from the threaded hole.

Abstract: The present invention relates to a cam, comprising a head, a body connected to said head and a leg comprising one or more flat bodies extending perpendicular to said body, where said cam further comprises at least one compressible isolation element located below said head and extending at least partially around said body.

Abstract: A deformable fastening system includes a clamped component and a fastener including a bolt having a shaft portion extending along a longitudinal axis of the fastener and a head portion having a surface including at least one engagement portion and one or more projections formed on the at least one engagement portion. The one or more projections are formed on the at least one engagement portion generally proximate the shaft portion. The one or more projections formed on the at least one engagement portion engage a mating surface of the clamped component to clamp the clamped component when the bolt is moved into a nut member causing an increase in axial load during the tightening cycle to deform the clamped component.

Abstract: A stud bolt to be fixed, in a retained state and a rotation stop state, to a mounting target plate includes a head, a screw shaft portion, a rotation stop portion, an annular groove, and an annular protrusion. The mounting target plate is to be sandwiched between a bearing surface of the head and the annular protrusion. A recessed portion recessed toward an upstream side in a screw advance direction is formed at the rotation stop portion.

Abstract: A clamp-on-post fastener includes a base section and a sleeve section including a first end connected with the base section, a second end, and an intermediate portion defining a center axis extending between the first end and the second end. The sleeve section includes an outer surface, a central passage having an inner surface, and a plurality of tooth members that project radially inwardly from the inner surface. The clamp-on-post fastener includes a slot extending through the base section and the sleeve section substantially parallel to the center axis forming a first fastener portion and a second fastener portion that are configured to be brought together to engage a substrate.

Abstract: A cushioning member includes a support portion, a first latch portion, a second latch portion, a first connection portion, a second connection portion, a first guide portion and a second guide portion. The first guide portion, the first latch portion, and the first connection portion are arranged opposite to the second connection portion, the second latch portion and the second guide portion on basis of the support portion as a center. When the first and second latch portions are in a relaxed state, a width of the support portion in a direction perpendicular to the axial direction is greater than a width of the first latch portion and a width of the second latch portion in the direction.

Abstract: A channel nut holder includes a polymer body having a central axis, top surface, plurality of side surfaces, and a bottom surface. A channel nut opening is positioned between the side surfaces. The channel nut opening is configured to receive a channel nut. The channel nut holder further includes a spring back mechanism having a plurality of gripping flaps disposed on the top surface at an acute angle alpha (?) with respect to the central axis.

Abstract: A fastener system for joining substrates of a workpiece with working and blind sides includes a binding barrel and a bolt. The binding barrel includes a cylindrical body with a proximal end, a distal end, a central bore and a flange. The central bore includes a counterbored portion and a threaded portion with internal threads. The binding barrel is inserted in a joining bore from the blind side. The barrel flange limits insertion of the binding barrel. The cylindrical body includes an outer surface with a lubricious coating. The bolt includes a head portion, a threaded portion and a shank portion. The bolt is inserted in the joining bore from the working side. The threaded portion engages with the binding barrel. As the bolt becomes fully engaged, the bolt causes radial expansion of the binding barrel, and the binding barrel provides an interference fit within the joining bore.

Abstract: An adjustable torque limiting fastener has a shank extending along an axis from a proximal end to a distal end. The fastener has a head at the proximal end of the shank. A torque limiter is integrated between the head and the shank. The torque limiter is operable to rotatably decouple the head from the shank when a torque applied to the head exceed a maximum torque. The maximum torque is set by a spring plunger integrated to the head for friction engagement with the proximal end of the shank.

Abstract: A locking plate for a locking arrangement includes a body that is defined by a first planar surface and a second planar surface that is opposite the first planar surface. The body has an arcuate shape that extends from a first lateral end to a second lateral end and extends from a radially inward facing edge to a radially outward facing edge. A single elongated curved opening extends through the body from the first planar surface to the second planar surface and extends an intermediate arc length in the body. An anti-rotation feature extends radially inward from the radially inward facing edge. The body has an anti-tilt lobe located proximate one or more of the first lateral end and the second lateral end.

Abstract: A fastening device includes a reverse self-tapping screw including a nut and a threaded shank having a tapered section and a threaded section wherein the tapered section is a reverse self-tapping screw formed on the threaded shank adjacent to the nut and has a length of d/4 to d/3; the reverse self-tapping screw is a screw having a tapered surface of 1.5×d/16; and the threaded section is a forward threaded screw; and an anti-loosening assembly including an internally threaded fastening element and a retaining ring. The internally threaded fastening element includes a nut member and an anti-loosening member having a plurality of spiral constriction grooves. The spiral constriction grooves have an inclined angle of 30°-60° with respect to an axis thereof, and an annular groove for securely receiving the retaining ring.

Abstract: A fastener comprising a nut, a washer, and a shell that axially retains the nut and the washer together. In one embodiment, the shell axially retains the nut and the washer together, and has a lower wall axially retaining the washer to the nut in a first direction, and a s-shaped section retaining the nut to the washer in a second direction. In another embodiment, the shell has a bent section and a lower wall extending axially away from the bent section. The lower wall of the bent section retains the washer to the shell. In yet another embodiment, the shell comprises a base wall including a first bend, a first skirt depending away from the first bend, a second bend extending away from the second bend, a third bend extending away from the second bend, and a second skirt depending away from the third bend.

Abstract: A fastener includes a bolt including a head and a threaded shank including a bare section proximate the head, an end section having a wider end and having a plurality of alternate grooves and ridges, an intermediate section proximate the end section and having a spiral trough, and a threaded section between the intermediate section and the bare section; and a hollow member including a head member and a malleable shank having a plurality of holes. The end section is tapered toward the intermediate section at an angle of 3-degree to 8-degree.

Abstract: A recessed object mounting device comprising a contiguous self-supported back plate equipped with securing means, permanently adhered to the rear face of a hollow wall material. The plate includes primary bore securing means adapted to threadably engage terminal threads of an object mounting rod or screw. The invention includes installation grasping means to position and to draw an adhesive-loaded back plate inner surface into firm contact with the rear wall face a during adhesive bonding. The recessed self-supporting plate serves as a base for coupling a threaded object mounting screw when the screw is inserted from the front face of a hollow wall aperture.

Abstract: A quick release nut apparatus, system, and method comprising surfaces between threaded segments and a sleeve in a fully closed or engaged position in contact and parallel to the axis of threads; The quick release nut apparatus, system, and method includes handles that are used for ease of operation as well as light torque or loosening when engaged or disengaged from the external threads, positive locking of the segments in an engaged position that increases tolerance to high forces or impact loading, and the sleeve inside of a housing that props or unprops the threaded segments.

Abstract: A fastener and a specialized driver, the fastener comprising a fastener head with aperture centered therein and fastener body extending from connection with the fastener head. The fastener body has an interior cavity along a length of the fastener body and a spring biased plunger is slidable within an interior cavity of the fastener body between a first position where the plunger has a surface configured to fit within the aperture and in a second position the plunger is spaced apart from the aperture. The driver is removably coupleable to the fastener to depress the plunger and transfer torque to the fastener for installation without damage to the fastener.

Abstract: A blind fastening assembly includes a bolt having a bolt shank and a bolt head, a metal expansion sleeve fitted in use over at least a part of the bolt shank and having deformable wall segments, a washer arranged over the bolt shank, a wedge member arranged between the washer and the expansion sleeve and having a wedge portion adapted to be inserted in one end of the expansion sleeve, and a nut arranged on the shank. The nut is adapted to tighten the washer and the expansion sleeve towards each other so as to pull the wedge portion of the wedge member into the expansion sleeve resulting in the wall segments being pushed outwardly. The wall segments have an inner side with an inner side surface adapted and arranged to engage a wall surface surrounding the opening in the wall of the constructional member opposite the washer.

Abstract: A fastening system for an aircraft includes first and second parts of the aircraft, a bolt hole including a bolt countersink and being defined by a bolt hole surface of the first part, a nut hole including a nut countersink and being defined by a nut hole surface of the second part, a bolt having a shank including threads, and a bolt head with an undersurface complementarily shaped to the bolt countersink, and a nut having threads and having a nut chamfer complementarily shaped to the nut countersink, the shank being dimensioned relative to the first and second parts, the bolt hole and the nut hole such that the shank is spaced from one of or both of the bolt hole surface and the nut hole surface. A method of fastening a first aircraft part with a second aircraft part using a bolt and a nut is also described.