Device for precise fitting positioning of at least two components relative to one another

The device has a locking hook (3) provided at an upper edge (2) of a bar-shaped locking element (1) that is connected with a component by a head side (4) of an isosceles trapezoid. A side piece (5) of the trapezoid is arranged freely over a component surface (6). A retaining opening corresponding to the locking element is arranged at another component. The opening includes two parallel running terminal strips, where the locking element is clamped with the sidepiece between the strips during insertion into the opening. The side piece and the strips are arranged in a springy manner. The components are manufactured from thermoplastic plastic consisting of polypropylene, polyethylene, polyamide, polystyrene, PVC, polycarbonate, polybutylene terephthalate, polyacrylnitrile, polymethyl metacrylate, acrylnithl butadiene styrene, acrylnitrile butadiene styrol/polycarbonate copolymerisate, polyphenylether, styrene acrylonitrile and polyoxymethylene in an injection molding process.