Abstract: A device for fastening a part, such as a trough, to a support part, such as a support plate, particularly on the edge of a recess on the part. A member includes a fastening member for fastening the part and a clamp that can be swiveled from a neutral position into a position in which one end grips underneath the support part. The clamp can be fastened by a locking screw. The member can be pre-assembled in a captive manner in a receiving profile on the edge of the mounting part.