Abstract: A fastener comprises at least one spring tab for snap-fastening an object to the fastener. The spring tab has an inclined surface extending between a first end and a second end, opposite the first end, at which it has a retaining surface set back beneath the inclined surface. The object to be retained has a projecting portion adapted to bear upon the inclined surface of the spring tab when the object is pressed against the fastener. Snap fastening is achieved by pressing the object to be retained onto the fastener in the direction extending from the first end towards the second end. The spring tab deflects and the projecting portion of the object to be retained slides upon the inclined surface of the tab. When the second end of the inclined surface is passed, the spring tab returns toward its original undeflected position and the retaining surface overflies the projecting portion of the object to be retained.