Patent ID: 7857566

Claim:
A method of creating a force on at least a portion of a workpiece assembly, the workpiece assembly including a self reacting tightening tool and having one or more bore holes extending therethrough, the method comprising: placing the bolt through a bore hole of the one or more bore holes, the bolt having a first end and a second end, the second end axially opposite the first end; selecting a biasing fastener based on a ratio of a thickness of the two or more side surfaces to an outer diameter of the biasing fastener is within the range of 0.050 to 0.200 whereby the ratio directly relates to an amount of load required to substantially flex or flatten the biasing fastener and an amount of live load that the biasing fastener can apply when substantially flexed or flattened; placing the biasing fastener onto the first end of the bolt against a workpiece first surface of the workpiece assembly, the biasing fastener having (i) a first surface and a second surface, wherein the first surface is convex and wherein the second surface is concave, (ii) two or more side surfaces extending between the first surface and the second surface, the two or more side surfaces being generally flat surfaces and adapted to receive the self reacting tightening tool preventing rotational movement between the biasing fastener and a portion of the self reacting tightening tool in direct contact with the biasing fastener, and (iii) an unthreaded bore having a bore axis, the bore axis being generally centered relative to at least one of the first surface and the second surface; and tightening a threaded nut onto the first end of the bolt over the biasing fastener using the self reacting tightening tool adapted to react off of the biasing fastener being held substantially rotationally fixed relative to the workpiece first surface by way of one or both of mechanical hindrance and friction whereby a live load is created between the bolt, the biasing fastener, and the threaded nut.