A carrying rack connecting device is provided, including: an insertion assembly, configured to be connected with a hitch; an urging mechanism, including a pin, a driving member and at least one urging member, the pin configured to pin the insertion assembly and the hitch, the driving member being connected to the insertion assembly and movable between a release position and an urging position, the driving member including an urging portion, the at least one urging member being swingably connected to the insertion assembly and including an urged portion, the urged portion and the urging portion partially overlapping, wherein when the driving member moves from the release position toward the urging position, the urging portion urges the urged portion to move the at least one urging member to swing outward so that the at least one urging member is urgingly abutted against the hitch.

A load sensing assembly for a spinal implant includes a set screw having a central opening that extends from a first end of the set screw toward a second end of the set screw. The second end of the set screw is configured to engage with an anchoring member. The load sensing assembly includes an antenna, an integrated circuit in communication with the antenna, where the integrated circuit is positioned within the central opening of the set screw, and a strain gauge in connection with the integrated circuit. The strain gauge is located within the central opening of the set screw in proximity to the second end of the set screw.

A polyaxial bone screw assembly includes a threaded shank body having an upper portion, a receiver member or head, a retaining and articulating structure, and a pressure insert disposed between the shank upper portion and a rod. The receiver has a U-shaped cradle defining a channel for receiving a spinal fixation rod and a receiver cavity. The retaining and articulating structure attaches to the shank and rotates with the shank in the cavity during positioning. The pressure insert presses upon the shank upper portion and not the retaining and articulating structure.

A connecting rod coupling device for attaching a component to an aircraft fuselage and/or stiffening the fuselage has a first coupler, and a second coupler couplable to the first coupler. The first coupler has an elongate body with a first channel on a lateral surface along a first longitudinal axis. The second coupler has a hollow-cylindrical portion, which, on an inner face along a second longitudinal axis, has a second channel complementing the first channel. The hollow-cylindrical portion has a radial cutout through which the elongate body is radially insertable into the second channel from outside the hollow-cylindrical portion. The second coupler has a closure body, which closes the radial cutout, and can be positioned removably in the cutout to complete the second channel on a radially internal face. The second coupler also has an element, pushable onto the hollow-cylindrical portion to secure the closure body on the hollow-cylindrical portion.

A valve includes a set screw that is screwable into and out of a complementary female threaded opening in a valve part for changing a setting of the valve, for changing an adjustable flow restriction of the valve, in which the set screw includes a free outer end that projects outside the valve part, and a gripping part on its free outer end for a tool to be engageable thereupon. The free outer end of the set screw includes a male thread onto which a locking nut is screwed. A protective cap is provided for covering the free outer end, that includes a first cap portion with a rotation space for fitting freely rotatable over the locking nut, and a second cap portion with a complementary female thread that is screwed onto the male thread towards a locked position.

An object of the present invention is to provide an anti-loosening device that exhibits its anti-loosening effect by means of an eccentric fit between a protrusion 12 of a nut 10 and a recess 22 in a nut 20, wherein the inclination of the nut 20 relative to the nut 10 when they have been tightened is minimized. The outer peripheral surface of the protrusion 12 and the inner peripheral surface of the recess 22 are constructed in such a manner that, with the nuts screwed to a threaded shaft S and an eccentric fit established between the protrusion 12 of the nut 10 and the recess 22 in the nut 20, the tapered outer peripheral surface portion 12a of the protrusion 12 interferes with the tapered inner peripheral surface portion 22a of the recess 22 along part of the circumference while a gap is formed between the distal-end outer peripheral surface portion 12b of the protrusion 12 and the closer-to-bottom inner peripheral surface portion 22b of the recess 22 along the entire circumference.

A method of using a hanger for supporting a load from an underside of a metal decking is described. The metal decking has a trough with a first groove opposing a second groove, and the hanger includes a flexible body which has an unflexed length that is greater than the groove spacing and is adapted to accept a load from a rod, cable, or wire. The method includes inserting the load support assembly through the aperture; contacting the first end of the body with the first groove of the metal decking; flexing the body to decrease the distance between the first end and the second end to a distance equal to or less than the groove spacing; and contacting the second end of the flexible body with the second groove of the metal decking. The body supports the load support assembly between the first groove and the second groove, and such that the load support assembly is movable relative to the flexible body.

A substrate usable with a double-side adhesive strip to suspend the substrate to a wall surface. The substrate can have one or more access holes located within an outer perimeter of the substrate. Each access hole has an inner perimeter inwardly of the outer perimeter that is sized and shaped to allow a tab of the double-sided adhesive strip to be extracted through the inner perimeter, after the substrate is suspended on the wall surface. Various articles can attach to the suspended substrate, such as through magnetic attachment, a hook, or a shelf.

In implementations of a pressure lock retention fastener, the fastener assembly includes an insert sized for insertion into a fastener hole in a first panel. The fastener assembly has a threaded collet sized to slide in the insert and has expandable flanges that extend below the insert. The expandable flanges are sized for insertion into an aligned hole in a second panel. The fastener assembly also includes a screw installable through the insert to engage the threaded collet. The screw exerts a force that pushes the expandable flanges outward as screw rotation drives the screw into the threaded collet, and ridge locks of the expandable flanges seat up against the second panel effective to fasten the panels together. In implementations, a plate is installable between the panels with slotted holes having anti-rotation tabs that prevent a fastener assembly from spinning in the panel holes.

Cylinder cover for an internal combustion engine, comprising a cylinder head, a cylinder head cover, an intermediate flange arranged between the cylinder head and the cylinder head cover, a plurality of fasteners for fastening the cylinder head cover and the intermediate flange to the cylinder head. The plurality of fasteners comprising a first fastener having a first head with internal threads, and a first shaft with first external threads, and a second fastener comprising a second head, and a second shaft with second external threads. The first fastener fastens the intermediate flange to the cylinder head and the second fastener fastens the cylinder head cover to the intermediate flange.