A mounting device includes a panel portion, and a fastener receiving structure provided within a perimeter of the panel portion. The fastener receiving structure can include an aperture to receive an insertive fastener, and a flexure mechanism to enable at least a portion of the fastener receiving structure that includes the aperture to flex with insertion of the fastener in the aperture that attaches the panel portion against an underlying surface.

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 present disclosure discloses plastic composite board comprising an upper board, a lower board, and a fastener. The lower board supports the upper board. The upper board comprises a panel and a downward edge disposed on a periphery of the panel. The periphery of the panel sinks downward to define a horizontal step surface, and the downward edge extends downward from an outer edge of the horizontal step surface. The fastener comprises a buckle groove. An inner side of the buckle groove defines an opening, and the buckle groove surrounds side portions of the upper board and the lower board to fixedly clamp the upper board and the lower board together. An upper wall of the buckle groove abuts the horizontal step surface, and a top surface of the fastener is lower than a top surface of the upper board.

A mounting device includes a panel portion, and a fastener receiving structure provided within a perimeter of the panel portion. The fastener receiving structure can include an aperture to receive an insertive fastener, and a flexure mechanism to enable at least a portion of the fastener receiving structure that includes the aperture to flex with insertion of the fastener in the aperture that attaches the panel portion against an underlying surface.

A quick-connect fitting for a convertible cargo handling assembly may comprise a fixed portion and a coupling component. The fixed portion may be secured to an aircraft frame structure. The coupling component may be coupled to a removable cargo handling component. The coupling component may be configured to rotate relative to the fixed portion.

A structural joint includes a first compression element and a second compression element. The first and second compression elements each define an exterior profile geometry tailored to accommodate a set of loading conditions. A first structural member with a distal end portion is disposed adjacent the first compression element and a first gap is defined therebetween, and a second structural member with a distal end portion is disposed adjacent the second compression element and a second gap is defined therebetween. A first adhesive fills the first gap and a second adhesive fills the second gap. A joint cover body extends over the distal end portions of the first and second structural members.

Provided is an assembled body assembled by splicing frames through male joint and female interface. The male joint includes a stopping edge and a locating protrusion, where the stopping edge extends in a first direction and the locating protrusion extends in a second direction orthogonal to the first direction. The female interface includes a first U-shape recess, and an inner surface of the recess is provided with a stopping groove and a locating slot adapted for retaining the stopping edge and the locating protrusion respectively.

A mounting system having a dual plunger arrangement wherein the side of each plunger has a pull down cam to provide a desired pull down action in relation to at least two studs, the cams moving relative to one another and axially aligning relative to one another relative to the two axially spaced pull down studs to allow the plungers to provide a maximum hold down force for the two pull down studs, balance the hold down forces thereby maximizing performance and reducing unlocking forces.

A fastening structure includes a first structural member, a second structural member, and a fastening member. The first structural member includes a composite material, and has a first electrically-conductive surface having electric conductivity. The second structural member has a second electrically-conductive surface. The second electrically-conductive surface is in contact with the first electrically-conductive surface and has electric conductivity. The fastening member penetrates the first electrically-conductive surface and the second electrically-conductive surface, and fastens the first structural member and the second structural member.

A mounting system having a dual plunger arrangement wherein the side of each plunger has a pull down cam to provide a desired pull down action in relation to at least two studs, the cams moving relative to one another and axially aligning relative to one another relative to the two axially spaced pull down studs to allow the plungers to provide a maximum hold down force for the two pull down studs, balance the hold down forces thereby maximizing performance and reducing unlocking forces.