Patent ID: 7891151

Claim:
An apparatus comprising: an undercover; a floor panel; and fasteners; wherein studs are fixed at predetermined positions on an underside of the floor panel, mounting holes formed in the undercover receive corresponding studs therein, and the fasteners are inserted in respective mounting holes and engage corresponding studs therein, wherein each fastener comprises: a first clip having a first flange with a first tube extending from a first side of the first flange; and a second clip having a second flange with a second tube extending from a first side of the second flange, wherein the clips are constructed so that the first tube can be inserted into the second tube along a common axis, wherein the tubes have cooperable first and second coupling elements, respectively, for coupling the inserted first tube to the second tube, with the first flange opposed to the second flange with a space between the flanges for receiving the undercover, with the first side of the first flange disposed to engage a first side of the undercover, and with a second side of the second flange disposed to engage a second side of the undercover, wherein the first tube is inserted in a mounting hole of the undercover and into the second tube, and the second tube terminates at the second flange, wherein the first and second flanges clamp the undercover between them with a predetermined clamping force, wherein at least some of the mounting holes of the undercover have a diameter substantially larger than the outer diameter of a first tube therein, wherein the clamping force prevents substantial movement of the undercover in the direction of the common axis, but permits planar movement of the undercover perpendicular to the direction of the common axis, wherein at least one mounting hole is a reference hole having a diameter substantially the same as the outer diameter of a first tube in the reference hole, and wherein at least one mounting hole is a secondary reference hole elongated in a predetermined direction.