The present disclosure relates to a fastener for fastening a fastening attachment to a carrier. The fastener includes a support disc and an engaging mechanism. The lower side of the support disc has a support disc supporting surface. The engaging mechanism connects the fastening attachment, and the engaging mechanism is formed by extending from the support disc supporting surface. The engaging mechanism includes a rod, a head and a pair of deflectable support members. A proximal end of the rod is connected to the support disc supporting surface. The head is arranged at a distal end of the rod. The pair of deflectable support members are arranged on the rod and comprise support member supporting surfaces facing the support disc, and a pre-assembling clamping space is defined between the support member supporting surfaces and the support disc to clamp at least part of a thickness of the fastening attachment.

A grill cover is configured to be utilized with a grill having a metallic component, the grill cover includes a cover body, a magnetic fastener, and a secondary fastener. The cover body presents an outer edge disposed along a bottom side and a cover void therein configured to receive the grill therein. The magnetic fastener and the secondary fastener are each secured to the cover body. The magnetic fastener is configured to provide a magnetic force to keep the magnetic fastener selectively secured to the metallic component of the grill so as to keep the cover body in place around the grill therein. The secondary fastener is configured to reduce a cross-sectional area of the cover void so as to prevent the grill cover from being removed from the grill while the secondary fastener is emplaced.

A connection device for fastening two expanded cellular confinement structures includes: an insertion member; an integral shank extending perpendicular from the insertion member; and an integral handle member extending perpendicular from the shank at an end of the shank remote from the insertion member. One or more barbs may project from the insertion member. The device can have a washer section between the handle member and insertion member. The handle can be curved, or it can be in the shape of a polygon.

A flexible shoulder pin module includes a barrel having an annular head portion, a cylindrical body portion, and a through-hole extending from a top surface of the body portion to a bottom end of the head portion; and a shoulder pin having a shaft portion and a shoulder portion formed thereon. The through-hole includes a first portion adjacent to the top surface of the body portion, and a second portion having a greater diameter than the first portion. The shaft portion is insertable through the first portion into the second portion. The shoulder portion is configured to adjustably extend above the top surface of the body portion to clamp a panel thereto. A compressible device is configured to be disposed around the shaft portion and secured by a stopper panel, which is coupled to the shaft portion and placed adjacent to the head portion within the second portion.

A versatile wall mounting assembly is disclosed. The assembly may include a first section extending parallel to a wall structure, a second section extending from the first section, wherein the second section includes a free end, and a third section extending from the first section. The third section may be oriented perpendicular to the first section. The assembly may further include a faceplate couplable with the wall plate, the faceplate including an outer side opposite an inner side, wherein a plurality of ridges extend towards the wall plate from the inner side. The plurality of ridges may include a first ridge in abutment with the second section of the wall plate, a second ridge in abutment with the second section of the wall plate, and a third ridge extending beneath the third section of the wall plate.

A photovoltaic panel wire cover assembly, used with a PV panel having a perimeter trim piece, includes clips, an elongate wire cover and fastener structure. Each clip includes a proximal end and long and short legs, the long leg parallel with and joined to the short leg at the clip proximal end. A gap between the long and short legs is sized for receipt of the trim piece. The wire cover includes a wire-covering housing defining a housing interior and having first and second opposite sides and a first flange extending from the first opposite side and positioned against the long leg. The fastener structure engages the short leg and the first flange to bias the first flange and the long leg therewith towards the short leg. The wire cover can be fastened to the trim piece through the clips without penetrating the PV panel.

A fastener unit and related method for securing a board to a support is provided. The fastener unit includes a spacer block, a grip element extending from the spacer block and configured to fit in and engage a groove of the board, and one or more board engagement elements extending from a portion of the spacer block. The board engagement elements can clamp the board, between an upper and/or lower surface of the board and a groove of the board, thereby securing the spacer block in a position adjacent the groove to establish a gap between the board and another board. Related methods of use also are provided.

The invention pertains to a modular presentation system for the display and support of goods and a build-up method therefor. The system comprises floor tiles, blocks, and cover plates. Two floor tiles can be interconnected by placing the two floor tiles adjacent and subsequently mounting a connection piece in connection recesses provided in the two floor tiles. Floor tiles, blocks, and cover plates are configured to clamp on top of floor tiles and blocks. The present invention allows to quickly and efficiently build up the modular presentation system.