Patent AT-E400744-T1: [Translated] FASTENING ELEMENT

The fastening element (1) for the fastening of an exterior leaf to a substructure has a shank section (2) made from a first material and a covering (8) of heat insulating material at least partially encompassing the shank element. A stop (12) for the exterior leaf is connected to an operating component (5). A retaining device (9) is provided on the covering and grips behind the exterior leaf when the fastening element is fitted. The retaining device is reversibly deformable, materially moulded with the covering and in the form of elastic fingers (10,11) distributed around the circumference of the covering.