Abstract: A lock nut system includes a nut having a retaining member which includes locking teeth configured to engage with the lock nut teeth. The retaining member is rotatable in both a clockwise or counterclockwise direction a preselected distance to allow the locking teeth to mesh with the nut teeth so the lock nut can be locked into position on the shaft without further rotation or other adjustment of the nut.

Abstract: The present invention provides a fast chip removal reaming screw, including a screw head, a rod body extending from the screw head and a first thread arranged on the rod body. The rod body includes a rod body portion connected to the screw head, an reaming portion, and a pointed cone portion. The reaming portion includes first reaming blocks, second reaming blocks and third reaming blocks which are disposed in a helically staggered manner, and chip removal paths formed between the first reaming blocks, the second reaming blocks and the third reaming blocks. A first width of the chip removal path located between the first reaming blocks and a second width of the chip removal path located between the second reaming blocks are different, so that wood chips can be fast removed to reduce a stress between the screw and a wood workpiece.

Abstract: A method and fastening device for use in heavy duty machinery for fastening a lining element to a surface of a body steel plate is disclosed. An assembly, a truck and a handling tool utilizing the method and fastening device is also disclosed.

Abstract: A self-tightening fastening apparatus for vibrating work-parts includes a male fastener, a main female fastener, a locking female fastener, an anti-rotation female fastener, and a first compression body. The main female fastener is threadedly engaged around a first threaded-shaft section of the male fastener, wherein a head of the male fastener and the main female fastener compress the vibrating work-parts together. The locking female fastener is threadedly engaged around a second threaded-shaft section of the male fastener. The first compression body is compressed in between the main female fastener and the locking female fastener. The anti-rotation female fastener is threadedly engaged around a third threaded-shaft section of the male fastener.

Abstract: A fastener for securing a first object to a second object includes a push member, a rigid shaft, an engaging member, a biasing member, and an anchor. The push member and the anchor are fixed to opposite ends of the rigid shaft. The engaging member is slideably coupled to the rigid shaft between the push member and the anchor. The biasing member is disposed between the push member and the engaging member to urge the engaging member toward the anchor. In a particular embodiment, the anchor is deployable.

Abstract: A press-in fastener has from top to bottom: a head, a clinch feature, and a spiral, knurled shank. The fastener can hold two parts together by first clinching with a first metal panel, and then being pressed into a hole in a second, less ductile panel having a uniform interference between the knurled fastener shank and the hole. The knurled shank has a helix configuration that allows for use in non-ductile materials and eliminates the need for tapered holes and screws for applications that do not require disassembly.

Abstract: A fastener system for securing a component to a structure is provided. The system includes a pin portion and a clip portion. The pin portion has a head and a shaft. The clip portion has a head engagement flange and a retainer flange configured to receive a fastener that extends along a first axis. The clip portion and the pin portion are configured for engagement with one another in an engaged position, and in the engaged position the pin portion shaft extends along a second axis non-parallel to the first axis.

Abstract: A faceted lobular threaded component and methods for making and/or installing the same. A faceted lobular threaded component may include a head, and a shank extending along a longitudinal axis away from the head. The component may also include an external faceted lobular thread in the shank extending around the longitudinal axis. The external faceted lobular thread may include at least four facets per thread revolution, and at least four lobes per thread revolution circumferentially interspersed between the at least four facets and established by the at least four facets.

Abstract: This invention relates to a fixing device for holding a fastener in a hole in a structure comprising an actuating part configured to engage with said fastener in use and a plurality of arms extending from and hingedly connected to the actuating part, each arm comprising a distal portion and an anchor portion between the distal portion and the actuating part. The arms are an insertion configuration formed or formable by moving the arms from an initial configuration in which the arms are splayed to the insertion configuration in which the arms are substantially aligned so that the distal portions define an axial passage and, in use, the fastener extends through the axial passage to engage with the actuating part, and cooperation of the fastener with the actuating part moves the actuating part in an axial direction towards the distal portions to cause a part of each of the anchor portions to move in a radially outward direction with respect to the axial passage to anchor the fixing device in said hole.

Abstract: A threaded element (1) is designed as a cold extrusion part made of metal and has a longitudinal center axis (L). The threaded element has a thread (5) having a thread pitch angle. The threaded element (1) can be screwed to a threaded connection partner having a mating thread by rotation in a tightening circumferential direction (F) and can thereby be moved in an axial movement direction (T) oriented along the longitudinal center axis (L) onto a support portion (17) of the threaded connection partner or of a component separate therefrom. The threaded element (1) has a ring portion (8) for support on the support portion (17). An anchor (9) for interlocking anchoring in the support portion (17) to establish an interlocking connection is formed on the ring portion (8).

Abstract: An assembly including horological movement support, a motor plate of a timepiece and a fastener fastening the support to the plate. The fastener includes a self-tapping screw having a body that passes through a hole in the support. A recess in the plate or support is tapped when the screw is screwed into the recess. The shape of the recess has a variable width, which is wider at the opening extending to a smaller diameter at the bottom of the recess, the shape corresponding to that of the body of the screw.

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 its position. In as second configuration, the holding member is reconfigured by the inserted shaft to trigger movement of the at least one jaw component toward the central shaft axis and into contact with the shaft.

Abstract: A buckle assembly and an electronic device using the buckle assembly are provided. The buckle assembly is assembled in a housing of the electronic device. The housing has an inner surface and a column with a first through hole, wherein the column protrudes from the inner surface toward inside of the housing. The buckle assembly includes a fixing element, a shaft and a pair of retaining rings. The fixing element is assembled in the first through hole. The shaft is fixed in the housing. The retaining rings are pivoted to the shaft. Each of the retaining rings has an arc portion, and the retaining rings buckle each other and abut on the column. The arc portions are co-constructed to form a first hole communicating with the first through hole while the retaining rings buckle each other, and the fixing element is inserted in the first hole and column to be fixed in the housing.

Abstract: An insert intended to be assembled in a hole in a sandwich panel including a hollow cylindrical body having a flanged end deformable by a placement tool allowing mechanical connection by deformation with a surface skin of the sandwich panel is provided. The insert includes an anchoring stem in the continuation of the cylindrical body as well as an internal tube intended to collaborate with the placement tool. The anchoring stem has at least one circumferential groove and a peripheral rib, the circumferential groove and the peripheral rib each having a transverse profile that is rounded so as to be able to collaborate with a curable substance.

Abstract: A multi-material boss, configured for fastening of a fastener thereto, being a feature of a die cast part, comprising a boss cylinder, an augmenting cylinder, and a filler metal layer is provided. The boss cylinder is made of the same material as the die cast part having a first hardness, and has a first interior. The augmenting cylinder is made of an augmenting material having a second hardness, is fixedly secured in the first interior of the boss cylinder, and has a second interior defined by a second cylindrical shaped wall, a base rim, and a second opening. The second hardness is greater than the first hardness. The fastener is fastened to the multi-material boss via the second opening of the augmenting cylinder having the higher liquidus temperature and greater hardness.

Abstract: A screwable device having a retractable threaded section that has a generally tubular shaft extending along a longitudinal axis and having a front section formed with a radially outwardly open aperture and a rear section. At least one locking element comprising a threaded section and being radially displaceable in the aperture between an outer position with the threaded section projecting radially outward from the shaft and an inner position in which the threaded section is recessed within the tubular shaft. An actuating is rod coaxially slidable in the shaft between a front position and a rear position, the actuating rod having a push-button at its rod rear end, the actuating rod having a structure for engaging the locking element in at least one of its positions pressing the locking element into the outer locking position.

Abstract: The present disclosure disclosures a mounting and dismounting nut structure. The mounting and dismounting nut structure comprises a first body, a second body, a plurality of threaded blocks, and a limiting member. Inner walls of the plurality of threaded blocks comprise internal threads, and outer walls of the plurality of threaded blocks comprise second inclined surfaces. When the mounting and dismounting nut structure surrounds the threaded rod and is pushed towards a countertop, the plurality of threaded blocks move toward a center axis of the plurality of threaded blocks, and the second body rotates to drive the plurality of threaded blocks to be locked with the threaded rod. When the plurality of threaded blocks is locked with the threaded rod, the limiting member supports the plurality of threaded blocks in an axial direction of the plurality of threaded blocks.

Abstract: A fastener to fasten a member to be fastened includes a shaft portion, a tool working surface, and an external operation restricting portion. The shaft portion is provided with a male thread configured to be rotated about an axis line to work so as to fasten the member to be fastened. The tool working surface is formed to a tool working portion integrated with the shaft portion. A tool to rotate the shaft portion works to the tool working surface. The external operation restricting portion is configured to restrict the rotation of the shaft portion through an operation from outside the fastener. In this fastener, the tool working surface to which the tool works is formed in an approximately cylindrical inner surface shape.

Abstract: A screw has a screw head and a shank extending downwardly from the screw head. The shank has a threaded segment, a cutting segment, and a tapered segment sequentially arranged downwardly, a thread spirally surrounding an external surface of the shank from the threaded segment to the tapered segment, multiple cutting ribs arranged around the external surface of the shank on the cutting segment of the shank, and multiple chip recesses formed between the cutting ribs. Each of the cutting ribs has a rounded crest to enlarge a drill hole and to reduce a resistance formed between the cutting ribs and the workpiece during drilling. The screw can be easily screwed into the workpiece with less driving force.

Abstract: A captive screw, comprising: a screw; a press fit nut, to connect to an opening on a device and to accept a screw, including: a bottom portion, to extend through the opening; a top portion; and a middle portion, wherein the middle portion is smaller in circumference than the top portion and the bottom portion; and a sleeve including a protrusion, wherein the sleeve fits over the screw and attaches to the press fit nut via the protrusion.