Patent ID: 8434982

Claim:
A fastener assembly including an externally threaded screw and an internally threaded nut in combination with at least two materials secured together by the fastener assembly, comprising: said screw having an enlarged head and an externally threaded shank with a length SL extending from said enlarged head, a combined thickness TM of the at least two materials being less than the length SL of said screw, said nut having a shank with a blind hole therein, said blind hole being internally threaded to threadingly receive said externally threaded shank of said screw, said shank having an anti-rotation structure thereon, said nut having an enlarged head on an end of said shank opposite from an end with an opening of said blind hole, an encapsulating plastic layer on said enlarged head of said nut covering a top side of said head and an underside of said head and surrounding a portion of said shank of said nut, said encapsulating plastic layer surrounding a portion, but not all, of said anti-rotation structure, said encapsulating plastic layer having a thickness TE on said underside of said head which is equal to or greater than a difference between said screw length SL and the material combined thickness TM.