Patent ID: 6932044

Claim:
A captured nut and work-piece assembly comprising,: an internally threaded fastener having a drive section, a first bearing surface, a work-piece receiving step extending from said first bearing surface, a second bearing surface at the end of said step and an axially extending collar extending from said second bearing surface and being coaxial with said step; a work-piece having an aperture to receive said step and seat against said first bearing surface, said fastener having its drive section on one side of the work-piece and the collar extending to the opposing side of the work-piece, said work-piece about said aperture having a thickness less than the height of said step; a washer having an aperture therethrough for receiving the collar, said washer having a proximate face seating said second bearing surface, said washer having a thickness greater than the height of said collar; said washer having an interior facing wall about its aperture that has a radially extending section that is captured by said collar as it is deformed outwardly with said proximate face seated on said second bearing surface.