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An automotive vehicle cowl cover assembly has a body cowl surface made of a material with a first coefficient of thermal expansion and an elongated ventilation screen covering the air intake opening with ventilation slots therein made from a material having a second coefficient of thermal expansion.

An automotive vehicle cowl cover assembly has a body cowl surface made of a material with a first coefficient of thermal expansion and an elongated ventilation screen covering the air intake opening with ventilation slots therein made from a material having a second coefficient of thermal expansion. The body cowl surface has a plurality of laterally spaced, rectangularly shaped body apertures and the screen has a plurality of circular mounting apertures formed therethrough registerable with the plurality of body mounting apertures. A plurality of fasteners engage with the ventilation screen to the body cowl surface, each of the fasteners including a rectangularly shaped nut member fitted in one of the plurality of body apertures and a toothed push-pin insertable through one of the plurality of apertures in axially fast relationship with the nut member to clampingly engaging the ventilation screen against the body cowl surface, the push-pin laterally slidingly received in the first slot and received in axially locking relationship with the ribs of the second slot such that the push-pin slides laterally with respect to the nut member to compensate for lateral relative movement between the ventilation screen and the body cowl surface in response to changes in temperature therearound.

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A cowl cover assembly for an automotive vehicle having a body formed of a metallic material with a first coefficient of thermal expansion defining an engine compartment and a passenger compartment, a cowl inner panel positioned rearwardly proximate of the engine compartment, a cowl outer panel with

A cowl cover assembly for an automotive vehicle having a body formed of a metallic material with a first coefficient of thermal expansion defining an engine compartment and a passenger compartment, a cowl inner panel positioned rearwardly proximate of the engine compartment, a cowl outer panel with a laterally extending body cowl surface between the cowl inner panel and the passenger compartment forming an air intake opening between the cowl inner panel and the body cowl surface, the cowl cover assembly comprising: (1) a plurality of laterally spaced, rectangularly shaped body apertures in the body cowl surface; (2) an elongated ventilation screen covering the air intake opening with ventilation slots therein, the screen having a second coefficient of thermal expansion and a plurality of circular mounting apertures formed therethrough registerable with the plurality of body apertures, the screen attached to the cowl inner panel on a forward edge thereof proximate the engine compartment; and (3) a plurality of fasteners engageable with the ventilation screen and the body cowl surface to clampingly urge the ventilation screen thereagainst, each of the fasteners including: (a) a rectangularly shaped nut member fitted in one of the plurality of body apertures and having: (i) a retainer surface in planar abutting relationship between the body cowl surface and the ventilation screen; (ii) a first slot in the retainer surface running generally lateral to the vehicle; (iii) a pair of walls perpendicular to the retainer surface extending into the body aperture in rotatively fast relationship therewith; and (iv) a second slot narrower than the first slot running generally parallel thereto and formed from a pair of locking ribs extending inward from the pair of walls; and (b) a toothed push-pin having an elongated, generally rectangularly-shaped shank with a pair of toothed edges separated by a pair of generally flat sides insertable through one of the plurality of apertures in axially fast relationship with the nut member and clampingly engaging the ventilation screen against the body cowl surface, the push-pin laterally slidingly received in the first slot and received in axially locking relationship with the ribs of the second slot such that the push-pin slides laterally with respect to the nut member to compensate for lateral relative movement between the ventilation screen and the body cowl surface in response to changes in temperature therearound.