Abstract: A fastener is configured for use in a high vibration application. The fastener includes a nut including a nut body including a cam surface comprising wedge locking action fastening features and a hex shape upon an outer surface of the nut body. The nut further includes a locking washer including matching wedge locking action fastening features to the wedge locking action fastening features of the cam surface and a matching hex shape upon an outer surface of the washer to the hex shape upon the outer surface of the nut body. The nut is configured to include a threaded inner surface selected according to a bolt to be fastened and a nut wall thickness selected according to a load to be applied to the nut.

Abstract: A screw-nut assembly has an integrated immediately effective securing arrangement that prevents an unintentional loosening of a screw connection formed therewith. The screw-nut assembly has a first screw connection body and an associated second screw connection body. One of the two screw connection bodies (1) has a free-wheel (3) that is connected thereto in a rotationally fixed manner. A coupling device (9) is provided between the free-wheel (3) and the other of the two screw connection bodies (2). This coupling device connects both screw connection bodies to one another in a rotationally fixed manner and allows their disengagement from one another.

Abstract: A fastener assembly includes a threaded bolt and a locking nut assembly. The threaded bolt includes at least one longitudinal groove. The locking nut assembly includes a nut adapted to threadingly engage the bolt, a locking ring adapted to engage the bolt and the nut, and a biasing member adapted to bias the locking ring. The nut includes a threaded bore dimensioned to receive the bolt and a plurality of teeth formed on a face of the nut. The locking ring includes at least one inwardly protruding tab dimensioned to be received by the at least one longitudinal groove of the threaded bolt and a plurality of teeth formed on a face of the ring. The teeth on the face of the locking ring cooperate with the teeth on the face of the nut to inhibit removal of the nut from the bolt after the nut has been tightened. A method for manufacturing the fastener assembly and a tool for use with the fastener assembly is also provided.

Abstract: An anchor, which is secured in a bore with a mortar, has an anchor member (12) located in the bore, a load application member (11) projecting out of the bore, at least one mixing element (13, 13′) for mixing components of the mortar, a drive element (20, 20′) provided on the anchor member (12) for setting in motion the at least one mixing element (13, 13′), and a trigger (21) for actuating the drive element (20, 20′) which automatically sets in motion the mixing member (15) upon actuation of the trigger (21).

Abstract: The locking nut and bolt system utilizes a bolt with thread having a plurality of notches generally longitudinally spaced in a predetermined pattern. Each notch has a lock face and an opposing slope. The locking unit carries one or more tines. The tine has a distal tine end adapted to latch onto the lock face of the notch on the bolt and, when the distal tine end is not disposed in one or more notches, the tine end moves on the bolt thread crest. When the distal tine end is in the notch or notches, the lock face of the notch prevents counter-rotational movement of the bolt with respect to the nut when the distal tine end abuts the lock face. The locking unit supports the tine and may be cylindrical, rectangular or on a perpendicular support face normal to a radial plane through the axial centerline of the nut thread. The locking unit may be on a nut insert or may be carried on the leg of a U, J or S-shaped clip. The locking unit may be recessed as a blind hole.

Abstract: A locking nut for use with a shaft having a serrated thread employs a segmented, radially expandable locking element having serrations on its internal diameter. The locking element is disposed in a counterbore of the nut and is axially movable between a first locked position and a second unlocked position. The locking element is resiliently biased toward the axis of rotation of the nut and is also resiliently radially biased axially to the locked position. The nut is unlocked by overcoming the axial resilient bias and driving the locking element segments up a radially diverging ramp provided within the nut against the resilient radial bias.