A rotary fastening device includes a rotating axial member and an inertia member. The rotating axial member includes a base body, an input end, an output end and an engaging portion. The input end is disposed at one end of the base body and selectively connected to a wrench. The output end is disposed at the other end of the base body. The engaging portion is disposed on the base body. The inertia member is detachably connected to the rotating axial member, and includes a gravity portion and an engaging hole. The gravity portion is extended toward the output end of the rotating axial member so as to form an annular space. The engaging hole is communicated to the annular space.

A tamper proof plug comprising a circular plug of material having a first side and a second side, with a first plurality of threads on the outer circumference to enable the circular plug to screw into a second plurality of inner circumference threads of a valve outlet that can control the flow of a liquid, wherein the circular plug has a polygon indentation in the middle of the first side of the plug, which is accessible to a tool having a protrusion the fits the size and shape of the polygon indentation, that allows a torque to be applied to the circular plug to screw the circular plug into a valve or unscrew the circular plug from a valve.

A tamper proof plug comprising a circular plug of material having a first side and a second side, with a first plurality of threads on the outer circumference to enable the circular plug to screw into a second plurality of inner circumference threads of a valve outlet that can control the flow of a liquid, wherein the circular plug has a polygon indentation in the middle of the first side of the plug, which is accessible to a tool having a protrusion the fits the size and shape of the polygon indentation, that allows a torque to be applied to the circular plug to screw the circular plug into a valve or unscrew the circular plug from a valve.

A security fastener assembly is provided with a cap having a standard tool bearing surface and an attachment portion formed opposite the tool bearing surface. A fastener body has a mating attachment portion formed at a first end along which the cap is secured and a keyed security feature formed adjacent the mating attachment portion. A second end of the fastener body has a threaded fastener portion for securing the fastener assembly to a vehicle. The threaded portion of the fastener body is installed with rotation in a first direction. Engaging the tool bearing surface of the cap and rotating in a second direction opposite the first direction does not rotate the threaded portion of the fastener body. The fastener body is removable with the keyed security feature.

A fastener includes a screw structure having threads and a dowel structure. The dowel structure includes a shank extending from the screw structure in an axial direction and connected to the screw structure, and a head engaged to the shank portion and disposed distally from the screw structure. A length of the dowel structure is greater than or equal to a length of the screw structure.

An assembly for a turbomachine turbine includes at least one ring sector made of CMC material and a support casing including an upstream flange and a downstream flange between which each ring sector is disposed, each ring sector including a base that has a radially external face from which radially extend two lugs, the lugs of each ring sector being retained between the two flanges of the support casing by axial pins each engaged in one of the flanges of the ring support casing and in the lug of the ring sector facing said flange, the assembly further including, for each ring sector, at least one radial retaining pin screwed into the support casing and coming to radially bear against a lug of the at least one ring sector to retain it in position, and anti-rotation system for rotationally locking the radial retaining pin.

An assembly for a turbomachine turbine includes at least one ring sector made of CMC material and a support casing including an upstream flange and a downstream flange between which each ring sector is disposed, each ring sector including a base that has a radially external face from which radially extend two lugs, the lugs of each ring sector being retained between the two flanges of the support casing by axial pins each engaged in one of the flanges of the ring support casing and in the lug of the ring sector facing said flange, the assembly further including, for each ring sector, at least one radial retaining pin screwed into the support casing and coming to radially bear against a lug of the at least one ring sector to retain it in position, and anti-rotation system for rotationally locking the radial retaining pin.

A compound screw is a two-piece assembly where the head of the screw can rotate in the tightening direction to a designed tightening torque to drive the screw while being able to positively counter-rotate in the loosening direction. The screw assembly comprises a screw and a cap surrounding the head of the screw. The screw has a head at the top and a threaded shank downwardly extending from a base of the screw head. The screw is turned by turning the cap about a central axis of the screw. The cap is rotatably affixed to the screw head by a loose riveting of the cap to the top most end of the screw head by flaring a thin-walled upwardly extending portion thereof. The cap includes a plurality of axially extending peripheral resilient arms which engage peripheral cam surfaces around the outside of the screw head.

Provided is a mounting member with an IC tag, the mounting member being easily manufactured and configured so as to not have constraints in terms of attachment orientation. The mounting member with an IC tag is provided with: a shaft-shaped section 1 having a shaft-shaped insert part 11 and a base part 12 which is formed by one end section of the insert part 11 protruding in the width direction; an IC tag 2 fixed to a surface 123 of the base part 12; and a resin head part 3 which is molded to at least the surface 123 side of the base part 12 so as to seal the IC tag 2. Male threads are preferably formed on the insert part 11.

Provided is a mounting member with an IC tag, the mounting member being easily manufactured and configured so as to not have constraints in terms of attachment orientation. The mounting member with an IC tag is provided with: a shaft-shaped section 1 having a shaft-shaped insert part 11 and a base part 12 which is formed by one end section of the insert part 11 protruding in the width direction; an IC tag 2 fixed to a surface 123 of the base part 12; and a resin head part 3 which is molded to at least the surface 123 side of the base part 12 so as to seal the IC tag 2. Male threads are preferably formed on the insert part 11.