Patent ID: 7462007

Claim:
A fastener combination comprising: a workpiece comprising one or more aligned pairs of bore holes; an elongated bolt, the elongated bolt comprising a first end, a second end and a threaded shaft extending therebetween through the one or more aligned pairs of bore holes; a reactive fastener comprising, top and bottom surfaces with at least one of the top and bottom surfaces being generally concave and at least a substantial portion of the other of the top and bottom surfaces being generally convex, at least a portion of the generally convex surface contacting the workpiece; one or more side surfaces extending between the top and bottom surfaces, the one or more side surfaces being adapted to receive a tightening tool preventing rotational movement between the biasing fastener and at least a portion of the tightening tool, a ratio of the thickness spanning between the top and bottom side surfaces with the outer diameter of the reactive fastener being about 0.13; a bore having a bore axis, the bore being continuously threaded from a top edge to a bottom edge with the thread spiraling on the surface of the bore a plurality of turns, the bore axis being generally centered relative to at least one of the top or bottom surfaces, and wherein, the threaded shaft of the elongated bolt being adapted to (i) be threadably received in the threaded bore and (ii) transfer a live load between the reactive fastener and the elongated bolt; a nut adapted to (i) be threaded onto the threaded shaft of the elongated bolt, and (ii) contact the reactive fastener generally concave surface; wherein, the reactive fastener is adapted to impart an axial biasing force to the elongated bolt received in the threaded bore when the nut is tightened against the generally concave surface.