Abstract: An anti-vibration fastener, including a square flange bolt to affix a first object to a second object, the square flange bolt including a first threaded portion disposed at a front end of the square flange bolt, and a second threaded portion disposed at a rear end of the square flange bolt having a diameter smaller than a diameter of the first threaded portion, and a forward nut to encapsulate at least a portion of the square flange bolt such that the first object and the second object are disposed between the forward nut and the front end of the square flange bolt, and an aft nut to encapsulate at least a portion of the square flange bolt and the forward nut.

Abstract: The present disclosure relates generally to an anti-backlash component. In one embodiment, the anti-backlash component includes a housing, the housing comprising a first threaded opening and a second opening, a bolt coupled to the housing through the first threaded opening and the second opening, the bolt comprising a spherical end, a nut coupled to the bolt and an exterior side of the second opening of the housing and a socket coupled to the spherical end of the bolt.

Abstract: Apparatus and Method of use for an improved lock nut type of fastener. On a threaded rod, a set of one or two cavity locknuts are used with a sleeve like ferrule to lock a nut in a set position on the rod. For example a nut that is clamping a workpiece can be held in place (resisting if not preventing loosening) by suitable application of the ferrule and cavity locknut. The cavity locknut has a tapered funnel-like cavity in a nut face around the nut's threaded hole. Locking is accomplished by immobilizing the ferrule on the rod and against the nut to be held, orienting the cavity side of the cavity locknut toward the ferrule, and forcefully torquing the cavity nut against and around the ferrule so that it is crimped against the threaded rod by the tapered cavity in the nut.

Abstract: Apparatus and Method of use for an improved lock nut type of fastener. On a threaded rod, a set of one or two cavity locknuts are used with a sleeve like ferrule to lock a nut in a set position on the rod. For example a nut that is clamping a workpiece can be held in place (resisting if not preventing loosening) by suitable application of the ferrule and cavity locknut. The cavity locknut has a tapered funnel-like cavity in a nut face around the nut's threaded hole. Locking is accomplished by immobilizing the ferrule on the rod and against the nut to be held, orienting the cavity side of the cavity locknut toward the ferrule, and forcefully torquing the cavity nut against and around the ferrule so that it is crimped against the threaded rod by the tapered cavity in the nut.

Abstract: A double safety fastener prevents accidental disengagement. The double safety fastener is composed of a first and second threaded fastener. The two fasteners are joined with a pivotable protrusion extending from the first fastener into a recess of the second fastener. When both fasteners are engaged with a threaded rod, torque is transferred from the second fastener to the first fastener through the protrusion, recess interface. If the second fastener disengages the threaded rod, the second fastener will swing away from the threaded rod eliminating transfer of torque to the first fastener, thus eliminating the disengagement of the first fastener from the threaded rod. Conversely reengaging the disengaged second fastener to the threaded rod is accomplished by rotating (typically clockwise) and pressing the second fastener toward the first fastener thereby catching the beginning thread of threaded rod.

Abstract: A single lock nut washer formed of steel or other material to simultaneously lock an inner wheel bearing nut and an outer bearing nut secured to an axle spindle. An annular member has a plurality of outwardly extending tabs that bend over to engage the outer surface of the outer bearing nut to prevent rotation. An inwardly extending lug engages a groove in the axle spindle to prevent rotation of the washer. A plurality of circumferentially arranged bores are each adapted to receive a longitudinally extending pin of the inner bearing nut to prevent relative rotation. The lug is offset from the bores and is preferably oriented circumferentially intermediate one of the bores and a midpoint to an adjacent bore.

Abstract: The present invention is directed to a fine-mechanical adjusting device, whose one embodiment includes a body (1) having internal threads and an end surface (8). An adjusting part (4) having external threads screws to the body (1). A clamping part (5) having internal threads screws to a part of the adjusting part (4) that extends beyond the body, and it has a seating surface (9) that faces the end surface (8). In order to eliminate the longitudinal backlash of the threads and to achieve easy, stable and accurate adjustment, an O-ring (7) is placed in a groove (10) in the end surface (8), which partly protrudes from the end surface (8).

Abstract: In order to provide a lock nut having a high reliability free from loosening, three nuts are used. The nut closest to the bolt head and the intermediate nut are engaged with each other in only the peripheral direction and do not come into surface-contact with each other in the axial direction, thereby aligning the outer peripheries thereof and forming internal threads on a variety of center bores. Then, the intermediate nut and the outermost nut are brought into press-contact with each other in the axial direction.

Abstract: A reusable positive locking device having a nut threaded onto a bolt shank to a certain closure position wherein a locking element is screwed onto the bolt shank against the nut and a crown element cupped over the end of the bolt shank is screwed onto the bolt shank to engage the locking element and is then given an additional increment of turning so as to elastically deform biasing means between the crown element and its threaded engagement with the bolt shank, thus closing up play among the bolt shank and the locking element and the crown and the nut, the threaded connections between the locking element and the bolt shank and between the the crown element and the bolt shank being of a different direction, and the locking and crown elements being held together against relative rotation by releasable detent means.

Abstract: A fitting having members threaded together to a desired position is provided with an arrangement for locking the members against relative rotation so as to maintain the members within a predetermined angular range of rotation relative to each other which encompasses the desired position. The locking arrangement includes longitudinally extending recesses in the outer surfaces of the fitting members which are axially aligned, and an insert which is fitted in a set of axially aligned recesses to lock the members against relative rotation. The recesses are keyhole shaped. The insert is also keyhole shaped in cross section, or is cylindrical. The insert may be made of suitable plastic such as nylon, or may be metallic. When the insert is of a material that is resiliently deformable, it may be laid over and then pressed into the recesses. A metallic or other less deformable insert, such as a rod or wire segment of safety wire, piano wire, etc.

Abstract: A ball nut having a ball return tube is formed with an externally threaded stud for supporting a mounting flange which is adapted to be screwed onto the stud. Angularly spaced segments of resiliently compressible wire are seated in an annular groove in one face of the flange. When the flange is screwed onto the stud, the segments engage a shoulder on the nut and compress to enable the flange to be tightened to a position in which the flange is in a predetermined angular orientation relative to the ball return tube.

Abstract: An anti-theft nut for forward threading on a threaded member and having removal preventing means. The nut has a nut case with an axially extending skirt and two axially extending blind bores, and a bottom nut attached to the skirt to define and inner cavity. Two roll pins of different lengths are assembled within the axially extending bores. An internal nut having an engagement shoulder for engagment by the roll pins, and a bearing disposed between the internal nut and the bottom nut are assembled within the nut cavity. The longer of the roll pins extends from its bore in the nut case to engage the shoulder of the internal nut to effect the forward threading of the anti-theft nut. Unthreading of the anti-theft nut is prevented due to jamming between the bottom nut, through the bearing, with the internal nut prior to possible engagement of the longer roll pin with the opposite side of the shoulder of the internal nut.

Abstract: An anti-rotation locking assembly is provided for preventing rotation of a surface such as in a housing member with respect to a threaded shaft as on a body to which the housing member is threadably mounted. There are provided two opposing flats or relief surfaces on the end of threaded shaft extending beyond the housing surface. A recess is provided in the surface around the hole for accepting a locking c-ring. The recess has a non-circular profile in the plane of the surface to prevent rotation of the ring in the hole. A ring having an outer profile matching that of the recess is provided. The ring has outer dimensions and a shape to its sides which will cause its periphery to engage and cam over the sides of the recess. A threaded nut is provided for threading on the shaft over the ring to press the sides of the ring into the recess so as to cause the ring to grip the flats and engage the sides of the recess upon tightening.