A solar panel racking system that can include end clamps, mid clamps, bottom clamps, L-foot adapter assemblies, rails, and L-foot assemblies. The solar panel racking system minimizes the use of tools by snapping many of the mounting components in place. The end clamps, mid clamps, and bottom clamps can snap over the rail sides and lock into upper detented portions of the rail sides. The upper detented portions are structured to prevent upward movement of the end clamps, mid clamps, and bottom clamps. The L-foot adapter body of the L-foot adapter assembly snaps over lower detented portions of rail sides and secures the rail to an L-foot assembly. The end clamps, mid clamps, bottom clamps, rails, and L-foot adapter assemblies are independent of the L-foot assembly, allowing a selection of L-foot assemblies to be used as appropriate with the solar panel racking system.

A fixation assembly for affixing a first object to and variably spaced from a second object. The assembly comprises a male fastener and a female fastener. The male fastener comprises a bolt-shaped part having a circumferential outer surface. The surface includes alternately on a circumferential path, in a cross-sectional plane of the part, at least one ridged section and at least one plain section. The female fastener comprises a tubular part having a circumferential inner surface. The inner surface includes alternately on a circumferential path, in a cross-sectional plane of the part, at least one ridged section and at least one plain section. The male fastener can be inserted into the female fastener such that its ridged section coincides with the female fastener plain section. Either the male or female fastener is configured to be rotated relative to the other, thereby engaging respective ridges of the two fasteners.

A compensation nut fastener assembly to connect first and second panels includes first and second nuts. The first nut includes a shaft having an outer threaded portion and a fastener-receiving channel. The first nut is connected to the first panel through the fastener, and the fastener is threadably secured to the first nut within the fastener-receiving channel. The second nut threadably retains the first nut, and includes a retaining wall having an internal threaded portion defining a central passage configured to threadably engage the outer threaded portion of the shaft of the first nut. The second nut is connected to the second panel, and the first nut is moveable within the central passage toward the first panel when the fastener threadably engages the first nut in order to compensate for a gap between the first panel and the second panel.

COMPENSATION NUT, of the type used to perform fixing together of two parts which may be joined together at a slightly variable distance while maintaining said distance separating them, used for example in motor vehicles in order to fix the supports of dashboards to the vehicle structure, said nut being formed by a combination of a top part, one or more intermediate nuts and a base clip or nut, which are provided with threads which allow mutual mating thereof and mutual retraction or extension thereof by means of a single screwing operation, said threads each being provided with stops which limit relative displacement thereof.

The present disclosure relates to a spring element for a device for compensating for tolerances between a first component and a second component, wherein the spring element comprises: at least two axial webs extending in the direction of a longitudinal center axis of the spring element and spaced apart from one another in the circumferential direction of the spring element, each of which, viewed in the direction of the longitudinal center axis of the spring element, has two opposite end sections connected by an intermediate section, wherein the end sections of an axial web have at least approximately the same radial distance from the longitudinal center axis of the spring element and the intermediate section arranged between these end sections has a different radial distance from the longitudinal center axis; and at least one connecting ring which connects the axial webs to one another.

A compensation nut formed by the assembly of a nut (2) and a bolt (3) and used to attach an application to a surface or panel while maintaining a variable distance between the surface and the supporting element or chassis in which the nut is attached, preventing this distance from collapsing when the application attachment bolt is tightened. The assembly includes a slightly flexible plastic annular body, such as an overmolded sleeve (9) of vulcanized plastic, held tightly in the cylindrical axial internal hollow of the bolt (3).

The invention relates to a device for compensating tolerances between a first component and a second component to be screwed to it by means of a connecting screw, comprising a base element and a compensation element that is in thread engagement with the base element, the thread engagement being non-self-locking in such a way that the compensation element moves out of the base element when the connecting screw exerts an axial force on the compensation element.

A device for compensating for tolerances between two components to be connected to one another may have a fastening element for fastening to a first component provided with an opening and for connecting the component to a second component. The device may also have at least two axial tolerance compensation stages for compensating axial tolerances between the two components. The at least two axial tolerance compensation stages are each arranged between the fastening element and one of the components.

A quick fastener by means of which at least a first and a second component are connectable to each other. The quick fastener includes a fastening bolt having a fastening thread of a first spiral direction, which is fastenable at the second component, and a compressible pretension element which is fastenable at the first component. The compressible pretension element includes a pretension thread at a radial inner side having a second spiral direction opposite to the first spiral direction, a hollow cylindrical thread element which is screwable with an outer thread at a radial outer side into the pretension thread of the pretension element having an inner thread at its radial inner side into which the fastening thread of the fastening bolt is screwable. At least a constructive rotation protection is provided between the hollow cylindrical thread element and the compressible pretension element. A production method for the quick fastener is further provided.

A drive unit reliably and stably attached to a bracket, even if the bracket has high stiffness, includes a housing including first and second suspension bosses located between first and second side plates of the bracket in a left-right direction of a bicycle. A first bolt is fastened to the first suspension boss and inserted from an outside in the left-right direction of the bicycle into a hole in the first side plate. A cylindrical member is fitted into an insertion hole in the second suspension boss that is open toward the second side plate. The cylindrical member is slidable in the left-right direction of the bicycle and includes a thread groove located on an inner periphery thereof engaging a thread located on an outer periphery of a second bolt that is inserted from the outside in the left-right direction of the bicycle into a hole in the second side plate.