Fastener clip for detachably securing functional components to threaded pins fixed to a support plate

In a one-piece fastener clip of the type constructed of hard-elastic plastic and operable to detachably secure functional components to a support plate through a threaded pin rigidly joined to said plate, said clip including holding members formed by elastic spring arms extending laterally to opposite sides of said clip and forming parallel channels adapted to receive and retain the functional components, said clip being formed with a fastening hole between said channels having an inside diameter slightly less than the outside diameter of the threaded pin which is adapted to be driven into the fastening hole;

• the improvement wherein said fastening hole is interrupted by a plurality of apertures extending through opposite side walls of said clip between said channels and to said fastening hole, said apertures having a width substantially equal to the diameter of said fastening hole, said apertures at each side wall of said clip being arranged one above the other and the apertures at one side wall of said clip being alternate to the apertures at the opposite clip side wall, said apertures having aperture side walls extending parallel to said channels formed by said holding members, said apertures forming a plurality of surfaces which are spaced axially of one another along substantially the entire axial length of said hole.