Patent ID: 7374381
Filing Date: 2008-05-20
Classification: B23P,F16B,Y10T

Abstract:
1. An assembly, comprising: a fastener joining two metal sheets in face-to-face contacting relationship, comprising; a first planar sheet having a first hole therein including sidewalls which occupy substantially all of said first undercut groove of said fastener; and a second planar sheet joined in face-to-face relation to said first sheet, said second sheet having a second hole therein of lesser diameter than said first hole in said first sheet and being concentric therewith, said second hole being of lesser diameter than said first hole and having sidewalls which occupy substantially all of said second undercut groove of said fastener, said top surface of said fastener is substantially flush with a top surface of said first sheet and an endface of said endcap of said fastener is substantially flush with a bottom surface of said second sheet.