Patent ID: 8974164
Filing Date: 2015-03-10
Classification: F16B

Abstract:
1. A polymeric fastener, comprising: a body adapted to receive a tool induced rotational torque and the body having a body longitudinal axis of rotation; a flange integrally connected to the body and defining a downwardly facing surface extending substantially perpendicular to the body longitudinal axis; a wave-shaped washer integrally connected to the flange, the wave-shaped washer having multiple valleys interposed between multiple oppositely directed peaks and defining an upwardly facing surface extending substantially perpendicular to the body longitudinal axis and opposing the downwardly facing surface of the flange; and multiple frangible connectors integrally connecting the flange to the wave-shaped washer, each frangible connector integrally connected at a first end to the flange along the downwardly facing surface of the flange, and integrally connected at an opposite connecting end of the frangible connector to the wave-shaped washer along the upwardly facing surface and at an individual one of the peaks; wherein the frangible connector has a minimal thickness at and extending along one of the upwardly facing surface of the washer and the downwardly facing surface of the flange, and wherein the multiple frangible connectors are positioned in a space between the downwardly facing surface of the flange and the opposing upwardly facing surface of the wave-shaped washer, and wherein the frangible connectors are bent, flattened, or both, between the downwardly facing surface of the flange and the upwardly facing surface of the wave-shaped washer when rotation of the wave-shaped washer is frictionally inhibited while the body is axially rotated in an insertion direction “R”.