Abstract: A fastener including a chisel point that pre-bores a hole in a work piece to prevent damage to the work piece as the fastener advances. The fastener can include a head, a shaft and a chisel brake point formed at an end of the shaft. The chisel brake point can include first and second opposing inclined surfaces disposed at an angle of about 80° to about 150° relative to one another. A thread can begin adjacent the chisel brake point and form an extension of an inclined surface and/or a chisel edge. The chisel brake point can scrape material from a work piece while pre-boring a hole. The material can be transferred to the thread, and subsequently fed up the thread, out of the pre-bored hole. The chisel brake point can also selectively retard advancement of the fastener into the work piece. Methods of installing the fastener also are provided.

Abstract: An improved nut-and-bolt assembly reduces tensile stress concentration on the bolt. The assembly has a specially designed nut with a tapered region extending from the nut crown and threaded with the first several bolt threads. The cross sectional area of the tapered region decreases linearly as a function of distance from the crown whereby the tapered region has a convex profile. Each of the bolt threads engaging the tapered region take up an approximately equal amount of longitudinal stress on the bolt.

Abstract: A grommet device and method of using a grommet device is provided. The grommet device includes a substantially circular base structure. A substantially circular top structure is connected to the substantially circular base structure with a substantially cylindrical middle portion, wherein an aperture having an interior space is positioned interior of the substantially cylindrical middle portion. A flexible top surface is connected to the substantially circular top structure, wherein the flexible top surface is substantially planar. At least one enlargeable slit is formed within the flexible top surface and through an entire thickness of the flexible top surface, wherein an unobstructed path is positioned from a location proximate to an exterior side of the flexible top surface, through the at least one enlargeable slit, and into the interior space of the aperture.

Abstract: A fastener assembly for installation within a work piece, the fastener assembly including a bolt, a retainer ring, and a housing that houses the retainer ring. The housing is positioned at and engages one side of the work piece, while the bolt is inserted into a hole of the work piece on an opposite side thereof. The retainer ring engages the bolt such that a plurality of pressure pads extending from a plurality of corresponding spring beam elements of the retainer ring reside in an annular groove of the bolt. The housing captivates the bolt onto the work piece, while providing a positive hold out of the bolt.

Abstract: It is possible to compensate for waterproof with a simple structure, and to achieve a reduction in the number of parts and a reduction in the connecting operation time. There is a connecting member that connects a first member 100 to a second member 101, wherein the connecting member is a fastening screw 10, having a head 11 on one side thereof and having a threaded portion 12 on the other side thereof, which performs connecting by fastening, and a plurality of rows of annular grooves 13 are formed in a seat surface 11a of the head 11 around a shaft of the screw. In addition, the head side of the fastening screw 10 is provided with a neck having a larger diameter than the diameter of the threaded portion which is closely inserted into an insertion hole of the first member, and a plurality of rows of annular grooves 13 are formed on the outer circumference of the neck.

Abstract: An assist grip of the present invention includes, but is not limited to, a grip body including hinge cavities on opposite bases and hinge assemblies pivotally supported inside the hinge cavities at opposite sides, respectively, and secured to mounting locations inside a vehicle via the hinge assemblies. Mounting clips are inserted into rectangular openings of hinge bodies of the hinge assemblies, respectively. Each of the mounting clips is formed by bending a pair of resilient legs having spring resiliency into a substantially U-shape, and includes resilient bulging portions bulging outward in the resilient legs at both sides. Each of the resilient bulging portions includes a retention portion to be retained by a mounting location of a vehicle body. The retention portion of the resilient bulging portion includes a recess portion that is recessed inward and provided with an extended region in a pull-out direction of the mounting clip.

Abstract: A pole butt removal tool is an unconventionally threaded shaft and a hub. The unconventionally threaded shaft has a minor diameter, a major diameter, a hub end and a terminal end with the terminal end ending in a conical point. The major diameter as a ratio to the minor diameter of the thread is greater than a major diameter/minor diameter ratio of Unified Coarse Thread Series (UNC) and the pitch is significantly less than Unified Coarse Thread Series (UNC).

Abstract: The invention relates to a riveting element (R) for riveting parts which are made from composite materials (M1 and M2) and provided with a through-hole. The invention is characterized in that it consists of: a hollow bushing (200) including, at one end, a head (210) bearing on the surface of one of the parts to be assembled and a hollow rod (220); and a semi-tubular insert (100) including a first end (110) capable of being inserted into the hollow part of the bushing (200) and an open end (130) capable of deforming in order to form an enlarged base that bears on the surface of the other part that is to be assembled once the insert (100) is translatably locked inside the bushing (200). The invention also relates to the installation tool configured for one such element.

Abstract: Embodiments of the invention relate generally to nut retention devices and, more particularly, to nut retention devices having a strap that can be fixed to a distal end of a threaded member without damage to the threaded member or nut, thereby permitting their reuse. In one embodiment, the invention provides a nut retention device comprising: a body having a nut engaging opening; and a deformable strap extending from the body, wherein, in an operative state, the nut engaging opening immovably receives a nut that is threaded on a threaded member and the strap is positioned to fixedly engage the threaded member to retain the nut.

Abstract: An aircraft monument mounting system is disclosed having a rail adapted to support a monument panel thereon, the rail including a recess for receiving an attachment device from below. The attachment device comprises a threaded fastener such as a poppet, a lock nut, an eccentric washer, and a thumbwheel. Rotation of the thumbwheel causes the eccentric washer to move the panel laterally, and the lock nut can raise or lower the panel, providing flexibility as to the positioning of the panel without disrupting the attachment point to the aircraft structure.

Abstract: A swage collar including a shank having a first end, a second end opposite the first end, and an outside diameter, a flange extending circumferentially from the first end of the shank and having a outer diameter, and a scalloped shoulder formed at a location where the first end of the shank transitions to the flange. When the swage collar is swaged, the shoulder is deformed from an undeformed state to a deformed state such that the shoulder is blended with the outside diameter of the shank and the outer diameter of the flange. When the shoulder is in its deformed state, it includes multiple curved portions each having a radius of curvature that visually indicates all around the outside diameter of the collar a complete swage of the collar. Knurling located on the outside diameter of the shank and proximate to the second end is deformable and provides a visual indication of the application of an installation tool.

Abstract: A fastener may include an anchor that is configured to be inserted into an attaching hole formed in a panel. The anchor includes a pillar, at least one engagement strip positioned in at least one side of the pillar, and a guide block formed in a distal end of the pillar and having a planar shape corresponding to a shape of the attaching hole. The at least one engagement strip is capable of passing through the attaching hole while being flexed inwardly and engaging a periphery of the attaching hole when the anchor is inserted into the attaching hole. The guide block is configured to pass through the attaching hole only when an axis of the anchor is positioned substantially perpendicular to a surface of the panel.

Abstract: A spring clip includes two articulated legs having engagement tongues for engagement with an external thread of a threaded shank, and at least one spring leg extending away from a base plate and arranged on a side of the base plate opposite the articulated legs. Engagement of the engagement tongues with the external thread is improved by the spring force exerted by the spring legs. Manipulation tongues are provided for assembly and disassembly of the spring clip, and ensure torque-free handling of the spring clip.

Abstract: The invention relates to a fixing element (1) for anchoring in a drilled hole, having a shank portion (2) and an expansion element (3), there being arranged on the shank portion (2) an expander body (8) for expanding the expansion element (3). The expansion element (3) has a plurality of arcuate expansion lobes (11), each expansion lobe (11) being formed by two bridging portions (14) connected by a yoke (15). The bridging portions (14) of the expansion lobes (11) together generate an envelope surface (M) of the expansion element (3), which envelope surface (M) has rotational symmetry about the longitudinal axis (A) of the fixing element (1). In order to provide a fixing element (1) which can be used both in a wide and also in a narrow drilled hole, the invention proposes that the yoke (15) have an arcuate curvature (17) which projects beyond the envelope surface (M) in the radial direction (R).

Abstract: A hinge for a movable furniture part fastened to a body of a piece of furniture is proposed, the hinge having a first fastening part which is attachable to the body and which is connected pivotably via a joint mechanism to a second fastening part attachable to the movable furniture part, the joint mechanism comprising articulated levers mounted via axes of articulation. According to the invention, a further pivotably mounted lever is present, which, during a complete as-intended pivoting movement of the hinge, is temporarily coupled to a guide portion on the hinge, the further lever acting upon a damper arrangement of the hinge.

Abstract: A manually installed fastener includes a fastener body having parallel first and second plates, the second plate having an aperture. A bend member integrally joins the first and second plates. The bend member has an outer deflectable leg integrally connected to the first plate and an inner deflectable leg integrally connected to the second plate. A first barb is integrally connected to the first plate and extends through the aperture of the second plate. A second barb is integrally connected to the second plate and is oppositely oriented with respect to the first barb. The second barb and the second plate are elastically displaced with respect to the first barb and the first plate to change a clearance diameter between the first and second barbs.

Abstract: A strain relief device for securing three radially arrayed flat cables coming into a closure includes a body having three armatures extending radially. Each armature includes at least two cantilevered segments extending from the at least one armature in opposing directions. At least one cable may be received in a receiving area partially defined by the armature and the cantilevered segment. Compressive force acting on the strain relief device secures the cables in the receiving area relative to the strain relief device.

Abstract: A fastening element for hard constructional components such as concrete, masonry, and the like, includes a cylindrical base body (22; 42; 62) having an inwardly located engagement element (28; 48; 68) for the setting bit and formed as a through-opening (31; 51; 71) in the bottom section (23; 43; 63) which is provided at the first end of the base body, a receptacle (29) opening toward the second end (25), remote from the first end and adjoining the engagement element (28; 48; 68) in a direction toward the second end (25), and provided with load application means (30; 50); and a self-tapping thread (27) provided, at least regionwise, on an outer surface (26) of the base body (22, 42; 62).

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: An unconventional bolt includes a main body having two heads, and two threaded rods respectively formed at the external surface of each head coaxially with the main body, wherein the cross section of each head has a noncircular shape, and the axial projection of the cross section of the middle of the main body is located in the noncircular axial projection of each head of the main body. The unconventional bolt has a simple structure and a convenient assembly, and can improve the strength and rigidity of the nested profiled components after the connection; and the fastening device using the unconventional bolt can not only support the component but also reinforce it, thus effectively preventing the nested profiled components from transforming.