A fastener, includes a first clip member having a first base portion and two first arm portions that extend upwardly from two sides of the first base portion, a second clip member locked with the first clip member and having a second base portion and two second arm portions that extend upwardly from two sides of the second base portion, and at least one hook portion extending from a distal end of one of the first and second arm portions, wherein the first and second clip members are arranged horizontally along two different directions, the second base portion is positioned on the first base portion.

An exterior wall panel apparatus and system is disclosed which assists in the rapid construction of manufactured homes and commercial buildings, and which replaces traditional building materials with a full composite system and materials, to extend and increase the protective capabilities of traditional residential, industrial and commercial structures

A grate apparatus for covering a pit defined in a floor of a vehicle wash facility includes a plurality of rigid rung pieces having a first end, a second end, an upper surface and a lower surface. The rigid rung pieces are secured in generally parallel and spaced apart fashion by a plurality of flexible strap members. The flexible strap members are secured to each of the rung pieces by a plurality of fasteners. The grate apparatus is moveable between an unwound position where the first end of each of the plurality of rigid rung pieces rests on one of a pair of spaced apart rails located adjacent the pit and the second end of each of the plurality of rung pieces rests on the other of the pair of spaced apart rails and a wound position wherein the plurality of rung pieces and the plurality of flexible straps are oriented in generally coiled position around a centerline.

A fastener, includes a first clip member having a first base portion and two first arm portions that extend upwardly from two sides of the first base portion, a second clip member locked with the first clip member and having a second base portion and two second arm portions that extend upwardly from two sides of the second base portion, and at least one hook portion extending from a distal end of one of the first and second arm portions, wherein the first and second clip members are arranged horizontally along two different directions, the second base portion is positioned on the first base portion.

Apparatus and process for securing a grating over an atmospheric opening of a ventilation shaft fluidly communicating through the ventilation shaft to an underground ventilation duct. A vertically extending support for arrangement in the shaft has horizontal flanges for projecting across a top of at least two opposing sides of said shaft to hang said support in said shaft for over topping by said grating. An anchoring member is supported in the support at a level below the flanges and proximate the atmospheric opening. A hold-down connects to the anchoring member to secure the hold-down and the grating to the anchoring member.

A floor grate fastener/clamping system includes a bracket having a length sized to span the distance between opposite sides of an opening in a floor grate and a J-hook having a pair of non-parallel side members which define hooks adapted to receive the bottom edge of a kick plate. A bolt extends between the bracket and the J-hook, such that rotation of the bolt brings the J-hook and bracket closer to each other, to enable the grate and its associated kick plate to be clamped together by the fastener/clamping system.

Apparatus and process for securing a grating over an atmospheric opening of a ventilation shaft fluidly communicating through the ventilation shaft to an underground ventilation duct. A vertically extending support for arrangement in the shaft has horizontal flanges for projecting across a top of at least two opposing sides of said shaft to hang said support in said shaft for over topping by said grating. An anchoring member is supported in the support at a level below the flanges and proximate the atmospheric opening. A hold-down connects to the anchoring member to secure the hold-down and the grating to the anchoring member.

Embodiments described herein include systems and methods for efficiently assembling a structure. In one embodiment, a system includes multiple panels, with each panel having a frame made of multiple members. Each member of the frame has at least two pairs of passageways. Each pair of passageways can include two passageways that intersect each other in a perpendicular manner. Furthermore, each passageway may pass through, and be oriented orthogonal to, the longitudinal axis of the member. The first pair of passageways can be spaced a first distance from the first end of the member, while the second pair of passageways can be spaced a second distance from the second end of the member. In some embodiments, the first and second distances are approximately equal to one another. This consistency allows for maximum interchangeability and compatibility of the members and/or panels.