An assembly for an aircraft engine mounting comprising an articulation axis supported by two plain bearings and a blocking device blocking the translation of the articulation axis in a direction which comprises a blocking screw that is screwed, in operation, into a first, tapped internal portion of a tubular extension secured to one of the two plain bearings, a first blocking system comprising an internal elastic stop ring housed in a groove formed in the tubular extension, and a second blocking system comprising a blocking screw which passes through first orifices passing through the second section of the blocking screw and second orifices passing through the tubular extension.

A device for ensuring proper installation of a helical insert is provided. The device includes a head portion, a body portion, and at least one thread-forming member. The body portion has a first section and a second section, and the first section of the body portion depends from the head portion. The second section of the body portion is longer than the length of the helical insert. The at least one thread-forming member is located on the first section of the body portion such that a radial extent defined by the at least one thread-forming member is greater than a radial measure to the inner diametrical surface of the helical insert. A method of using the device is also provided.

Provided is a fall prevention tool (1) for a nut (N), which is installed in a bolt (B) to which the nut (N) is attached, the tool including a bolt holding part (2b) into which the bolt (B) is inserted, and a nut holding part (3) that is provided integrally with the bolt holding part (2b), is provided on an outer periphery of the nut (N), and is configured to prevent rotation of the nut (N) by restoring force.

Provided is a fall prevention tool (1) for a nut (N), which is installed in a bolt (B) to which the nut (N) is attached, the tool including a bolt holding part (2b) into which the bolt (B) is inserted, and a nut holding part (3) that is provided integrally with the bolt holding part (2b), is provided on an outer periphery of the nut (N), and is configured to prevent rotation of the nut (N) by restoring force.

A hose clamp fastener positive locking device is provided that comprises a two-legged, pronged device adapted to secure about the fastener housing of a hose clamp and prevent rotation of a slotted fastener disposed therein. The device comprises a first and second leg joined to an upstanding member. The upstanding member engages the slotted fastener head of the hose clamp, while the legs are positioned about the sides of the fastener housing. The distal ends of the legs are pinched together about the end of the fastener housing to secure the upstanding member and the legs to the fastener housing.

A hose clamp fastener positive locking device is provided that comprises a two-legged, pronged device adapted to secure about the fastener housing of a hose clamp and prevent rotation of a slotted fastener disposed therein. The device comprises a first and second leg joined to an upstanding member. The upstanding member engages the slotted fastener head of the hose clamp, while the legs are positioned about the sides of the fastener housing. The distal ends of the legs are pinched together about the end of the fastener housing to secure the upstanding member and the legs to the fastener housing.

The present invention is a lock nut which fastens to enable a downstream bent portion of a spiral coil spring to be a stopper point so that the diameter of the spiral coil spring is extended overall, and which unfastens to release the downstream bent portion from the stopper point and enable an upstream bent portion of the spiral coil spring to be a stopper point so that the diameter of the spiral coil spring is extended overall, thus enabling the lock nut to be easily fasten without sacrificing elastic fastening forces of the conventional lock nut, preventing the lock nut from easily unfastening by unintentional external force, and enabling the lock nut to unfasten only by intentional external force. The above described operation can be performed without increasing manufacturing cost, and the lock nut can be manufactured to be disposable in order to achieve preventing accidents in advance.

The present invention is a lock nut which fastens to enable a downstream bent portion of a spiral coil spring to be a stopper point so that the diameter of the spiral coil spring is extended overall, and which unfastens to release the downstream bent portion from the stopper point and enable an upstream bent portion of the spiral coil spring to be a stopper point so that the diameter of the spiral coil spring is extended overall, thus enabling the lock nut to be easily fasten without sacrificing elastic fastening forces of the conventional lock nut, preventing the lock nut from easily unfastening by unintentional external force, and enabling the lock nut to unfasten only by intentional external force. The above described operation can be performed without increasing manufacturing cost, and the lock nut can be manufactured to be disposable in order to achieve preventing accidents in advance.

The present invention relates to a device for adjusting the camber angle for a suspension of a motor vehicle comprising a stem. A tightening assembly is tightened on a first end portion of the stem, against a first wall of a suspension. A head assembly, on a second end portion of the stem, abuts against a second wall of the suspension. In the head assembly, a first eccentric element, removably mounted on the stem, is configured to act as a cam on a first abutment portion of the suspension. The head assembly is characterized in that it comprises a locking assembly, configured to prevent the removal of the first eccentric element. The locking assembly comprises an elastic member snap engageable in a locking seat of the second end portion of the stem.

Provided is an anti-loosening spring nut including: a female thread spring which is wound a certain number of times along male threads of a bolt, and at whose lower portion and upper portion are projectingly formed, respectively, a lower catching loop end and an upper catching loop end, at directions different from each other and outward in a radial direction, and an external casing which has a shape of an enclosure accommodating the female thread spring, on a bottom plate of which is penetratingly formed a bolt insertion hole into which the bolt is inserted, and along whose side face are provided a plurality of pushing projections which are depressedly formed inward at constant intervals.