Patent ID: 7736082

Claim:
A fastening system for aiding assembly of a plastic unit including a joined portion having a machine screw housing and a host portion having a screw shaftway extending thereform, said fastening system comprising: a walled cavity disposed on said host portion and arrayed about said screw shaftway, said walled cavity being a substantially low-mass body of plastic disposed on one surface of said host portion precluding formation of sink holes at the corresponding opposite surface of said host portion, in turn, comprising: a header portion aligning with said screw shaftway; four freestanding ribs disposed on said host portion and substantially equally spaced about said screw shaftway, said ribs fixedly receiving said U-shaped clip; a machine screw adapted for disposition in said machine screw housing of said joined portion, said machine screw having an external thread; a U-shaped clip for insertion into said walled cavity of said host portion, said U-shaped clip, in turn, comprising: a medial portion having an aperture therethrough being, upon installation, aligned with said screw shaftway; left and right side portions, each side portion contiguous with said medial portion at one end thereof and each dimensioned for insertion into said walled cavity of said host portion; a plurality of barbs in said right and left side portions, and, upon installation, said barbs bite into said walled cavity and secure said U-shaped clip to said host portion of said plastic unit; and, a lead thread about said aperture dimensioned to threadingly engage said external thread of said machine screw; said header portion dimensioned for fixedly receiving and for fully seating thereupon of said medial portion of said U-shaped clip and orienting said lead thread with said screw shaftway.