Abstract: A fastening device, in particular, is part of a fastening system for detachably fixing components (42,44) to one another, such as wall coverings to walls, preferably in the field of interiors. The fastening device has a support part (2) including a support plate (12) with protruding closure elements (24) on one side and a protruding fixing part (4) with a fixing structure (26) on the other, opposite side (8). The fixing part (4) has an axial length preferably less than or equal to each radial length of the support part (2) extending transversely to it. The fixing structure (26) of the fixing part (4) is self-locking or self-tapping. The support plate (12) has a cut-out (36) for applying an operating tool. The cut-out extends from the support plate (12) into the fixing part (4) and is free by the closure elements (24).

Abstract: The invention relates to a fastening device, in particular as part of a fastening system for detachably fixing components (42,44) to one another, such as wall coverings to walls, preferably in the field of interiors of any type, said fastening device having a support part (2), which has a support plate (12) for protruding closure elements (24) on one side and a protruding fixing part (4) with at least one fixing means (26) on the other, opposite side (8). The fastening device is characterised in that —the fixing part (4) has an axial length which is preferably less than or equal to each radial length of the support part (2) extending transversely thereto, —the respective fixing means (26) of the fixing part (4) is self-locking or self-tapping, and —the support plate (12) has a cut-out (36) for application of an operating tool, said cut-out extending from the support plate (12) into the fixing part (4) and being left free by the closure elements (24).