An anti-rotation device for a pair of threaded components includes a pair of ratchet interfaces and a spring element. A first ratchet interface and the spring element are movably disposed within a first threaded component, and a second ratchet interface is disposed at a mating end of a second threaded component. During relative rotation of the pair of threaded components, the ratchet interfaces engage, providing a resistance to the threaded components loosening that is greater than a resistance that the ratchet interfaces provide to the threaded components tightening. The anti-rotation device engages automatically upon relative rotation of the threaded components, and not as a separate step occurring after rotation. Additionally, the anti-rotation device may be especially useful in systems where various types of movement can cause the threaded components to loosen, and where visual access to the anti-rotation device is impeded.

An eccentric anti-loosening screw device includes a screw and a fastening assembly. The screw includes a head and a threaded shank. The fastening assembly is threadedly secured onto the shank and includes first and second locking members each including a longitudinal threaded hole secured onto the shank, and a surface of curved inclination on an end with the threaded hole passing through; and an angle of curved inclination is greater than a pitch of the shank. The surface of curved inclination of the first locking member is engaged with that of the second locking member to form a gap therebetween. Solder points fasten the first and second locking members together. A rotation of the first locking member about the second locking member fastens the first and second locking members together, and the second locking member is further rotated until the solder points are broken to generate an eccentric force.

An eccentric anti-loosening screw device includes a screw and a fastening assembly. The screw includes a head and a threaded shank. The fastening assembly is threadedly secured onto the shank and includes first and second locking members each including a longitudinal threaded hole secured onto the shank, and a surface of curved inclination on an end with the threaded hole passing through; and an angle of curved inclination is greater than a pitch of the shank. The surface of curved inclination of the first locking member is engaged with that of the second locking member to form a gap therebetween. Solder points fasten the first and second locking members together. A rotation of the first locking member about the second locking member fastens the first and second locking members together, and the second locking member is further rotated until the solder points are broken to generate an eccentric force.

In various representative aspects, an assembly for securing a solar panel rail and rail-less support structures to a shingle roof. More specifically, the apparatus includes a connection bracket and flashing device for use in installing solar panel rail support structures. The connection bracket is secured to the flashing device by rotating its base around a threaded connection until it locks in place so that a solar panel rail support guide can be connected to a generally U-shaped connection on the top of the bracket. The apparatus also offers an improved means to cover the penetration point on the flashing to protect it and prevent water from leaking into the roof as well as an improved way to install the apparatus over existing products. An alternate embodiment of the apparatus is offered to support a rail-less pivot mount as well.

The present invention discloses a thread-locking assembly characterized by comprising an externally threaded member with external thread and a threaded member with thread fitting with the externally threaded member, wherein the externally threaded member is movable relative to the threaded member through the engagement of the external thread and the thread, and a blocking member which is arranged outside the externally threaded member. The inside of the blocking member is provided with projections. There is space between the projections and the externally threaded member. When the externally threaded member inclines under force, friction is produced between the externally threaded member and the blocking member to perform the locking function.

The present invention discloses a thread-locking assembly characterized by comprising an externally threaded member with external thread and a threaded member with thread fitting with the externally threaded member, wherein the externally threaded member is movable relative to the threaded member through the engagement of the external thread and the thread, and a blocking member which is arranged outside the externally threaded member. The inside of the blocking member is provided with projections. There is space between the projections and the externally threaded member. When the externally threaded member inclines under force, friction is produced between the externally threaded member and the blocking member to perform the locking function.

An apparatus includes a body, a collar, a fastener and a retainer. The body extends between first and second sides. The collar sealingly engages the first side and extends into an aperture in the body. The fastener engages the second side and extends through the collar to a distal end. The retainer is mated with the fastener at the distal end. The collar and the fastener cooperate to limit rotation therebetween.

An apparatus includes a body, a collar, a fastener and a retainer. The body extends between first and second sides. The collar sealingly engages the first side and extends into an aperture in the body. The fastener engages the second side and extends through the collar to a distal end. The retainer is mated with the fastener at the distal end. The collar and the fastener cooperate to limit rotation therebetween.

A CAGED NUT, of the type formed by the composition of a container housing and a nut accommodated therein, wherein said nut is formed by a planar base from which emerges a threaded cylinder linked to said base by means of a connection vault; said housing or cage being formed by a stamped clip that clasps said nut between flexed lateral arms and folds at the ends of said clip; tabs for engaging with the panel where said assembly is to be fastened emerging from said end folds.

A vehicle wheel lock assembly includes a main body and a first sleeve. The main body has a wheel engaging end, a key portion, a first supporting section and a key receiving end. The key portion has a plurality of surface contours defining a first key pattern configured to couple with a tool for torsional movement of the main body. The first sleeve has an open end and a closed end. The open end is installed to the first supporting section of the main body such that the closed end of the first sleeve covers the key receiving end with the key portion exposed relative to the first sleeve. The first sleeve is retained by the first supporting section for rotation about the central axis of the main body and is non-movably retained relative to an axial direction of the main body.