Abstract: Disclosed herein is a packing nut lock for a fluid end assembly of a reciprocating pump. The fluid end assembly includes a fluid end block component, a set screw which may have a pointed end, and a packing nut. The set screw engages or interlocks between the a first and second thread of a threaded bore to prevent displacement of the packing nut from the threaded bore.

Abstract: A storage battery includes a terminal portion for storage batteries having a plurality of bolt insertion holes bored in one or a plurality of directions, a nut insertion opening through which a nut is inserted, a hollow in communication with the bolt insertion holes and the nut insertion opening and the nut having at least one screw hole threaded in a direction coincident with at least one or the plurality of directions. A fixation portion is formed to fix the nut by deforming the terminal portion with the nut being inserted through the nut insertion opening into the hollow and the at least one screw hole of the nut being in communication respectively with the at least one of the plurality of bolt insertion holes.

Abstract: The invention relates to a screw which can be screwed into a component and which will resist further screwing into an internal thread within said component once a maximum torque has been reached. For this purpose, a screw body having an external thread is combined with a screw drive element which projects into a bore within said screw body and, within said bore, is connected to the screw body via static friction. At least part of this combination is made of a plastic material, with the static friction having the effect of a slipping clutch when a maximum torque acts on the screw drive element. The screw drive element is connected to the screw body via a ratchet in such a way that when the screw body is unscrewed from the internal thread within said component, turning said screw drive element will cause the ratchet to engage, thereby entraining the screw body.

Abstract: A wheel retention nut includes a body having a front face and a rear face. A central bore with internal threads extends through the body. A first outer perimeter of a first diameter is positioned adjacent to the front face. The first outer perimeter defines a polygon adapted to receive a wrench. A second outer perimeter of a second diameter, which is larger than the first diameter, is positioned adjacent to the rear face. The second outer perimeter is sized to retain an eccentrically rotating wheel.

Abstract: A mounting apparatus for coupling a toilet seat hinge to a toilet flange includes a bolt with a proximal end including an upper flange and threaded distal end, a nut with a threaded opening that receives the threaded distal end of the bolt and a plurality of radial openings, and a set screw. The radial openings extend from a first end proximate to the threaded opening to a second end on the outer periphery of the nut. The set screw is received in one of the radial openings. The set screw provides a pressure to the threaded distal end of the bolt.

Abstract: An improved lock device includes: a locking unit, having a force exerted portion, a screw rod section and a screw thread section sequentially disposed on a surface of the force exerted portion, and an embedded groove disposed around the periphery of the screw rod section; and a ferrule, having an embedding edge and a latch groove, and the embedding edge installed into the embedded groove for movably coupling the ferrule to the locking unit, such that the invention can use the ferrule latch groove and the locking unit for locking a board with a base as required.

Abstract: The present invention relates to an anti-loosening set screw for a carburetor, comprising a cylindrical body, a front end of the body is disposed with an adjusting section, a rear end of the body is disposed with a head with a slot, the body has a cylindrical face which is disposed with an exterior screw thread section, wherein the cylindrical face of the body is further disposed with a recessed ring groove, the ring groove is disposed with a ring-shaped elastic plastic body which is integrally formed therewith by injection molding. In comparison with the prior art, the present invention has the advantages of simple construction, close cooperation, good anti-loosening and tight sealing effects and so forth.

Abstract: A locking nut has an internal thread intended to be screwed up on a thread on a shaft and includes at least one locking element which, by way of at least one locking screw, is adapted to be pressed against the thread in the shaft, thereby locking the nut against unintentional unlocking. The locking element is provided with a releasing device incorporating at least one screw arranged to be in threaded engagement with the locking element for subjecting the locking element to a radial pulling force causing the locking element to be lifted from engagement with the shaft thread after loosening of the locking screws.

Abstract: A locking nut includes a threaded main bore for receiving a threaded portion and a number of oblique bores in each of which is positioned a locking pin having a forward end for engagement against the threaded portion. The oblique bore and the associated locking pin have a common longitudinal axis extending at generally the same angle to the axis of the threaded main bore as one of the flanks of the thread of the threaded main bore so that the forward end of the locking nut has at least one flank generally parallel to the longitudinal axis and lying parallel to the portions of the one flank of the threaded main bore adjacent the inner end of the oblique bore. Each locking nut is generally cylindrical and possesses an outer surface that is grooved or serrated to facilitate insertion of the locking nut into the respective oblique bore.

Abstract: A modular holder for suspending conduit and junction boxes from a support surface by a single hanger wire or threaded rod. The holder has an elongate body with a central threaded bore extending along a longitudinal axis and opposed flat ends, a first transverse threaded bore disposed intermediate the opposed ends extending through the body along an axis perpendicular to the longitudinal axis, and a second transverse bore disposed near one of the opposed ends extending through the body along an axis perpendicular to the longitudinal axis. The holder body may be suspended in a vertical position by a hanger wire looped through the second transverse bore or screwed onto the bottom end of a threaded rod whereby the lower end of the body is connected to a conduit hanger or a junction box.

Abstract: A lock structure, in which a nut member is screwed on a threaded portion formed in a shaft member in the axial direction and in which a fixed member fitted on the shaft member is thrust in the axial direction and fixed by the nut member. The lock structure comprises: a lock nut member screwed in the threaded portion on the opposite side of the fixed member across the nut member; a first threaded portion formed in a portion of the nut member other than the portion screwed on the threaded portion and having a lead angle different from that of the threaded portion; and a second threaded portion screwed in the first threaded portion and formed on the lock nut member.

Abstract: A bicycle front fork and head tube mounting arrangement includes a front fork having a tubular top shaft and an annular bearing portion around the top shaft, a head tube sleeved onto the top shaft of the front fork and supported on a ball bearing in the annular bearing portion of the front fork, a locating ring supported on a ball bearing in the top end of the head tube around the top shaft of the front fork, a split screw cap tightened up with a locating screw and threaded into an inner thread in the locating ring, a ruuber ring mounted in an inside annular groove in the split screw cap and disposed in close contact with the periphery of the top shaft of the front fork, and a tightening up screw threaded into a radial screw hole on the locating ring to hold down the split screw cap.

Abstract: Cantilever shafts (34, 40) support bearing assemblies (54, 56). An improved lock nut (70-86) permits precise installation of the bearing assemblies, to improve operation of associated rotary tools (18, 20).

Abstract: A lock nut includes a nut body (10) having outer (12) and inner (14) circumferential surfaces. The inner surface (14) defines a screw-threaded axial through-hole that can be mounted on an externally threaded shaft. A plurality of blind bores (18) is formed in the nut body (10), each blind bore extending radially inwardly from the outer surface. Those blind bores (18) terminate short of the inner surface so that a plastically displaceable part (20) of the nut body remains between each blind bore and the inner surface to close-off a radial inner end of the blind bore (18). Locking screws (30) are mounted in respective blind bores (18). By tightening the locking screws (30), the displaceable portions (20) are pressed against the externally threaded shaft to frictionally grip the shaft.

Abstract: The invention concerns a nut provided with a locking element (4, 5, 6, 7), which by e.g. a screw (8, 9, 10, 11) can be urged radially against a screw thread. In order to provide a self-contained and easily releasable nut the locking element is arranged in a recess which, together with the element, is so arranged that at least a part (12, 13, 14, 15) of the element is deformed elastically when the element is moved against the screw thread. Thereby the element springs out of contact with the thread when the screw (8, 9, 10, 11) is released.

Abstract: In a ball head lock nut as a component element of bicycle head parts, a split clamping ring is received within an annular groove formed in a threaded, cylindrical internal wall of a substantially annular nut body; a deformable fixing piece, which has a diametrically extending slot formed in its inner end wall, is disposed within a radially extending threaded through hole formed in the annular nut body, with the slot engaged with a part of the split clamping ring; and a set screw is screwed into the radially extending threaded through hole to push the deformable fixing piece axially inwardly for forcible compression and deformation.