Patent ID: 8656650

Claim:
A fastener for fastening an upper level to a lower level located below the upper level, the fastener provided to resist upwards loads on the upper level, the fastener comprising: a plate affixed to a portion of the upper level, the plate including edges defining a hole through the plate; and an elongate cylindrical member positioned through the hole, the elongate cylindrical member having a proximal end and a distal end, the distal end fastened to a portion of the lower level, and the proximal end engaging the edges of the plate defining the hole, the engagement between the proximal end and the edges of the plate allowing the plate to move downward relative to the elongate cylindrical member but preventing the plate from moving upward relative to the elongate cylindrical member; wherein the elongate cylindrical member is a screw including a flange and threads, the tabs bent up from the plate at a first angle allowing insertion of a shank of the screw, and the tabs bent up from the plate at a second angle for engaging the threads, the flange moving the tabs from the first angle to the second angle upon insertion of the screw through the hole.