Device for fastening to a fastening projection of a carrier component

A device for fastening to a fastening projection (30), which has an undercut, of a carrier component (28), comprising a housing portion (10) which forms an insertion portion (12) for the fastening projection (30), at least two elastic latching arms (22) being provided which extend into the insertion portion (12) and which are designed, at first starting from a rest form, to deform, in the course of inserting the fastening projection (30) into the insertion portion (12), elastically in the insertion direction of the fastening projection (30) and, with a subsequent return to shape, to latch on the undercut of the fastening projection (30), characterized in that furthermore at least one latching-arm support (24) is formed on the housing portion (10) and opposes a deformation of the latching arms (22) from their rest form in an opposite direction to the insertion direction of the fastening projection (30).