A radiator grille fixing structure comprises a plurality of fasteners which are each composed of a base plate and engaging means formed one each on the opposite sides of the base plate, with at least one of the two engaging means containing a shank portion of increased wall thickness and a flexible arm...http://www.google.fr/patents/US4389759?utm_source=gb-gplus-shareBrevet US4389759 - Radiator grille fixing structure