Patent ID: 7374382

Claim:
A captive clinch nut for rotatable attachment to an apertured sheet, comprising: a nut body having an axial threaded bore; a first bearing surface on a base of said nut body; an annular displacer collar unitary with said nut body and located directly below said bearing surface, the displacer collar inwardly tapered along its entire outside surface and having an outside diameter less than an outside diameter of said first bearing surface, and a second load-bearing surface on a bottom side of said displacer collar parallel to said first bearing surface; a rigid tubular shank being substantially non-deformable in its unattached free state - prior to assembly, unitary with said nut body, and coaxially extending from said displacer, said shank being outwardly flared toward a distal end along its entire length; and wherein a neck of said shank immediately adjacent said displacer has an outside diameter less than the outside diameter of said displacer and less than an outside diameter of said flared end; and an undercut between said shank and said displacer, said undercut adapted to receive only a partial cold flow of metal of said sheet.