A mounting assembly for securing fixtures to a mounting structure may include a first fastener, a washer, a mounting bracket, and second fastener. The first fastener may be coupled to the mounting structure through a mounting aperture. The washer may be disposed around shaft of the first fastener between a head of the first fastener and the mounting surface. The mounting bracket may be disposed on top of the first fastener. The second fastener may be disposed through the mounting bracket and coupled to head of the first fastener. The washer may be a sealing washer that dispenses liquid sealant under compressive force to moisture-proof the securement of the first fastener to the mounting surface.

A mounting assembly for securing fixtures to a mounting structure may include a first fastener, a washer, a mounting bracket, and second fastener. The first fastener may be coupled to the mounting structure through a mounting aperture. The washer may be disposed around shaft of the first fastener between a head of the first fastener and the mounting surface. The mounting bracket may be disposed on top of the first fastener. The second fastener may be disposed through the mounting bracket and coupled to head of the first fastener. The washer may be a sealing washer that dispenses liquid sealant under compressive force to moisture-proof the securement of the first fastener to the mounting surface.

A method of transporting liquid petroleum gas (LPG) comprising coupling reverse thread fittings of a first tank to reverse thread fittings of a second tank, the first tank storing the LPG; and allowing the LPG to flow from the first tank to the second tank through the reverse thread fittings of the first tank and the reverse thread fittings of the second tank.

The invention is directed to a toolless screw including a body portion which comprises a shaft portion and a screw portion which includes a shank portion and a tip portion. The shank portion includes at least two helical threads which extend off the shank either at different angles, different distances, or a combination thereof. The tip portion is positioned at an end of the shank portion and has a diameter which is less than the diameter of the shank portion and extends to a point. The body portion is integrated with a screw portion at the end of the shank portion which is opposite the end where the tip portion is positioned.

A heat dissipating assembly, adapted to be disposed at an M.2 expansion card and configured onto a main board with the M.2 expansion card, is provided. The heat dissipating assembly includes a first heat dissipating member and a first double-end screwing member. The first heat dissipating member is adapted to be disposed on the main board, located between the main board and the M.2 expansion card, and has at least one first through hole. The first double-end screwing member includes a first thread and a first nut having a first screw hole. The first thread passes through one of the at least one first through hole of the first heat dissipating member and is detachably fixed to the main board. The first nut presses against the first heat dissipating member.

A heat dissipating assembly, adapted to be disposed at an M.2 expansion card and configured onto a main board with the M.2 expansion card, is provided. The heat dissipating assembly includes a first heat dissipating member and a first double-end screwing member. The first heat dissipating member is adapted to be disposed on the main board, located between the main board and the M.2 expansion card, and has at least one first through hole. The first double-end screwing member includes a first thread and a first nut having a first screw hole. The first thread passes through one of the at least one first through hole of the first heat dissipating member and is detachably fixed to the main board. The first nut presses against the first heat dissipating member.

An installation tool assembly includes a workpiece and a tool. The workpiece includes a first wall having an aperture and a second wall spaced from the first wall relative to a first axis to present an access point therebetween. The installation tool assembly includes a fastener disposed in the aperture of the first wall at an initial position. The fastener includes a hole and a fastener locking feature disposed inside the hole. The tool includes a tool locking feature that is configured to engage the fastener locking feature to secure together the fastener and the tool in the initial position. The tool is operable to pull the fastener farther through the aperture into an interference fit with the first wall in an installed position. A tooling assembly includes the tool and the fastener. A method of installing the fastener to the workpiece uses the tool.

Described is a masonry fastener, comprising: a shank having a first and second portions and a first and second end, the shank having ductility measured as the bending angle under complete three repeated cycles without rupture of between about 10.0° and 22.0°; the first portion having a tapered helical screw portion along a predetermined longitudinal length thereof, the tapered helical screw portion commencing at a tip of the first end thereof and ending at an end of the second portion; and the second portion having a tapered helical screw portion along a predetermined longitudinal length thereof, the tapered helical screw portion commencing at an end of the first portion and ending at the second end.

Provided is a storage receptacle stacking system comprising a set of receptacles. Each receptacle is an open rectangular prism defined by, a back panel, which has a top edge, a bottom edge, a right edge, and a left edge, and a first back panel surface, and a set of side panels. The set of side panels has top, bottom, left, and right panels. Each receptacle is removably engaged to at least one other receptacle by a first set of fasteners. For each receptacle, at least one of the panels in the set of side panels is adjacent to and parallel with at least one of the panels in the set of side panels of another receptacle, and any one of the panels in the set of side panels may be engaged in the alternative with any one of the panels in the set of side panels of any other receptacle.

Disclosed is a rebar coupler. The rebar coupler includes a housing having first and second openings for receiving first and second rebars, respectively, and a partition disposed at a center; a mounting member inserted in each end of the housing and receiving rebars therein; a plurality of coupling members slidably disposed on the mounting member and being brought into contact with an outer peripheral surface of the inserted rebars to prevent the rebars from moving out from the rebar coupler; a resilient member configured to apply a restoring force to the coupling members so that the coupling members slid by the rebar inserted in the mounting member are returned to an original position; and a cover fastened to both ends of the housing to prevent the mounting member and the coupling members from moving out from the housing due to a tensile force of the rebar.