A fastener or grommet is configured to securely clamp together one or more components. The fastener includes a body having a longitudinal axis and at least one wall. The body further includes two arms extending from the body on opposite sides at a flexure joint. Each of the arms includes a feedback feature that causes hesitation in the fastener during installation. The feedback feature further comprises an arched profile that extends the entire width of each of the arms.

A tree fastener assembly includes a cap, a base, a strap that connects the cap with the base, and a stem that extends from the base. A plurality of first wings extend radially outward from the stem.

A connection assembly between two structures, the assembly including an assembly of two eccentric rings, one of which, the external ring, is fitted on the other, being formed as an insert, a bore of the internal ring being configured to fix to one of the structures using a fixing element, and the external ring being accommodated and retained in a through-opening of the other structure, at least one of the eccentric rings being made from a deformable material in order to at least compensate for a play when it is compressed by two retention and compression elements during assembly. Advantageously, it is thus possible to benefit from a mechanical play which facilitates the assembly and to eliminate this play during a tightening operation of the fixing element in order to improve a transfer of loads between the two structures.

A fastening device, configured for interlocking attachment in a through-opening of a structural element, wherein the fastening device comprises a contact surface for contact on a first side of the structural element delimiting the through-opening as well as at least one first latching tab and at least one second latching tab, wherein the latching tabs each have at least one latching projection, wherein the latching projections are configured to engage behind the through-opening on a second side of the structural element delimiting the through-opening, wherein the distance of the latching projection of the second latching tab from the contact surface is greater than the corresponding distance in the case of the first latching tab. The fastening device can be, in particular, part of a container, for example of a coolant expansion tank, of a motor vehicle and the structural element part of a body of the motor vehicle.

A connecting mechanism is provided, including a first member, a second member, a first connecting element, a second connecting element, a resilient element, and a ball-shaped element. The first connecting element is connected to the second member. The first connecting element has an opening. The second connecting element is disposed in the first connecting element. The resilient element is connected between the second member and the second connecting element. When the first member moves to a joining position relative to the second member, a column of the first member extends through the opening, and the ball-shaped element is clamped between the first connecting element, the second connecting element and a recess of the column.

An example pivot nut assembly includes a pivot body and a nut. The nut is pivotably engaged in the pivot body.

A U-base clip component can include a pair of rib coupling barbs which can extend inwardly from two opposing clip side walls. A seal component can include two opposing aperture retention wings coupled to a central wall. A first and a second component annular seal can extend from opposite respective sides of the central wall. The U-base clip component and the seal component can define an interior rib receiving cavity between both the clip side walls and the aperture retention wings. A pair of rib coupling barbs can extend into the interior rib receiving cavity from the clip side walls and the two opposing aperture retention wings can extend exteriorly from the clip side walls. The rib coupling barbs of the U-base clip can be designed to couple fastener to the rib and the aperture retention wings can be designed to couple the dual component sealing fastener to the aperture.

The present disclosure relates to a spacer configured to space a first member apart from a second member, and the spacer includes a support component and a spacer component. The support component has a body, which has a support surface for the first member to be put on, and the support component further has a first hook element separated from the support surface by a first distance and a second hook element separated from the support surface by a second distance greater than the first distance. The spacer component is used to be placed between the first member and the second member and to space the first member apart from the second member, and the spacer component can be snap-fitted with the first hook element or the second hook element relational to the thickness of the first member. The present disclosure further relates to a connection system including the spacer for a base station antenna. The spacer is advantageous in cost, compact in structure, and easy to install.

A fastener structure is provided, including a hollow sleeve, a rod body, and a hook assembly. The hollow sleeve is assembled on a first plate, and the rod body is inserted into the hollow sleeve. The hook assembly is rotatably assembled on the first plate, and includes a hook component and an elastic component. The hook component is adapted for being fastened to a positioning opening portion of a second plate, where a first side of the rod body is adapted to lean against the hook component. A first end of the elastic component leans against the first plate, and a second end of the elastic component is fixed on the hook component.

A mounting assembly for use in mid-grab and/or edge-grab applications may include a clamp secured to a stanchion by a clamping fastener. The mounting assembly may also include a mounting plate which may be secured to a mounting device by the stanchion. The mounting assembly may be used, for example, to secure photovoltaic modules (or other devices or structures) of varying heights to a roof or other building surface.