Abstract: A locknut which uses a pivotable segment mounted within the locknut body to slightly deflect producing an increased friction (locking force) between the locknut body and bolt which is threaded into the locknut body. This locking force is preset at the construction of the locknut to assume a lower amount of force or a higher amount of force according to the desires of the customer purchasing the locknut. The amount of force could be adjustable by using a set screw.

Abstract: A self-locking nut includes a main-nut body and a deformable-nut body. The main-nut body has a recess leading into an interior threaded bore forming x turns of an internal thread therein. The deformable-nut body has an outer flange and an interior threaded bore forming y turns of an internal thread therein. The outer flange of the deformable-nut body is fixed to the main-nut body such that a relief space is formed between the deformable-nut body and the recess. A ratio of x:y is about 2:1.

Abstract: A screw nut from a metal material, which comprises a tapped hole and an inner groove which radially extends in relation to the longitudinal axis thereof. An annular collar is formed onto one of the faces of the screw nut and its cross-section is bent in the direction of the axis to such a degree as to delimit, together with a section of the face surrounding the tapped hole as a contact surface, a receiving slot that is directly associated therewith.

Abstract: A threaded ring has a single-piece body provided with an internal screw thread and two parts (1 and 3). The first part forms an adjusting ring having an end face (11) located in a radial plane. The second part (3) forms a retaining ring connected to the first part (1) of the body by an elastically flexible wall part (29) of the body forming a gap (15) between the two parts of the body (1 and 3). An actuating device (31) permits the geometry of the gap (15) to be adjusted due to the elastic flexibility of the wall element (29). The second part (3) of the body, used as a retaining ring, has a peripheral region (21) for the formation of the elastically flexible wall element (29), and has a smaller outer diameter than the first part (1). The outer diameter of the peripheral region is located on a smaller radius than the radially outer end (17) of the gap (15). The outer end of the gap, in turn, is located on a smaller radius than the periphery (19) of the first part (1) of the body.

Abstract: A self-locking threaded element that is used, for example, in a tool receptacle of a grinding tool. The self-locking threaded element comprises a retaining member (1) and a main part (3) axially disposed relative to the retaining member (1) at a distance (a) and connected with the retaining member (1) by a connection web (2). The main part (3) and the retaining member (1) are interspersed with a thread (4) for engaging a counter-thread. The retaining member (1) is displaceable relative to the main part (3), at least in the longitudinal direction (L) of the thread (4), to provide a self-locking threaded element that is inexpensive to manufacture and enables both simple tightening and loosening of the threaded element.

Abstract: A bolt with a partially threaded shank has a plurality of locking grooves located on the shank between the thread and its head. The bolt is inserted through a component stack and spacing washers and a stepped reaction washer such that at least half of the locking grooves are left exposed. A deformable frusto-conical locking ring is positioned on a nut having a circular receiving cavity on one end. The nut and locking ring are positioned on the thread of the bolt and tightened so that the locking ring is deformed from a frusto-conical shape to a substantially flat disc such that its bore diameter is reduced, thereby retaining it within one of the locking grooves. The outer diameter of the receiving cavity abuts the stepped reaction washer.

Abstract: A lock nut having a body member with a threaded axial bore and a washer having an axial opening coupled to a bottom end portion thereof so that the opening of the washer is aligned substantially with the threaded axial bore. The washer has one or more fingers with threaded finger tip portions partially defining the opening thereof. The threaded finger tip portions of the washer are in-phase helically with the threaded axial bore of the body member. A recess is disposed between the washer and the body member, and a protruding portion of the washer extends from the bottom end portion of the body member.

Abstract: A joint between an implant body component and a stem component provides an initially rigid connection that further remains rigid even if the joint settles upon being loaded. The body and stem have portions comprising a male/female taper junction. A fastener maintains the taper junction in tight engagement. The fastener engages the implant components and draws them together. The fastener includes a resilient portion that deflects such that if settling occurs, the resilient portion maintains compressive contact between the fastener and the components.

Abstract: An adjustable lock nut comprising a one-piece annular body having an internally threaded axial bore extending between and faces of the body and a circumferential outer face. The body has a narrow annular internal groove that opens intermediate the ends of the axial bore and extends generally radially outwardly from the axial bore. A set of radial bores extend into the body at circumferentially spaced locations with their axes disposed in a plane normal to the body axis and bisecting the internal groove and the radial bores each include an internally threaded outer end portion and a threadless conical inner end portion, configured to form semi-conical recesses in the body at opposite sides of the internal groove adjacent the internally threaded axial bore. An externally threaded screw in the outer end portion of each radial bore actuates a wedge that engages the semi-conical recesses to apply separating forces thereto.

Abstract: A compact locking nut has a body provided with a threaded bore along which the nut engages a thread so that upon rotation it will advance over a thread to a position suitable for securing and positioning a machine component such as a bearing. The nut has a machined back face along which it bears against the secured machine component and a front face at its other end. The body contains two grooves--one external in that it opens outwardly from the exterior surface and the other internal in that it opens into the bore--and these grooves divide the body into a clamping section, a locking section, and an intervening web which is thin enough to flex with relative ease. The external groove lies closest to the back face, whereas the internal groove lies closest to the front face. On its exterior the body has lands which extend out to the front face. Typically, the body derives from a forging having the lands and a bore.

Abstract: A lock nut comprising an internally threaded body having an internally threaded bore and one groove opening at the bore and a second groove opening at the outer surface, the grooves are axially spaced apart and configured to divide the body into first and second end ring portions and a thin axially relilient intermediate portion integral with the end portions. The body has a plurality of internally threaded openings extending inwardly from the outer surface and externally threaded secews threaded into the internally threaded openings and configured to wedge the end ring portions axially away from each other when the screws are threaded into the openings.

Abstract: A fastener and method for fastening panels is disclosed. The fastener comprises a bolt and a nut with a locking feature to prevent loosening of the fastener from vibration after it has been set. The locking feature comprises a frustoconical tip on the inserted end of the bolt that engages a retainer ring in the nut. When setting the fastener, the retainer ring deforms around the outer end of the tip and slides down the narrowing frustoconical surface of the tip until the fastener is fully set. Unthreading of the bolt from the nut is prevented since the retainer ring will resist deformation along the increasingly larger diameter portions of the frustoconical tip. In another aspect of the invention, the nut is provided with shear tabs which engage a wrenching tool. These tabs are designed to shear when the fastener is fully set to prevent further application of torque by the tool.

Abstract: The device has a screwthreaded collar 9 constituting a brake and trapped in a cavity 5 of a nut 2 with respect to which it is connected to rotate and axially movable in the cavity between an internally first position in which its screwthread 12 is in phase with the screwthread 3 of the nut and a second position in which the screwthreads are no longer in phase. The collar has splines 13 in its screwthread adapted to cooperate with splines in the screwthread 34 of a shaft 18 on which the nut is screwed so as to be immobilized in rotation on this shaft when the screwthreads of the collar 9 and the nut 2 are no longer in phase. For mounting the nut device, a tool is provided which comprises a hollow sleeve 20 defining a cavity adapted to receive the nut 2, an arrangement 29 for retaining the nut in a resilient manner and an arrangement 32 for maintaining the collar 9 in the first position at the inner end of the cavity 5 in opposition to the action of the second ring 15 when the nut is retained in the sleeve.