Fastening system for fixing an additional floor plate to the original loading floor of a vehicle and for lashing loads

The system has a holding element (3) including a disk-like base body facing away from an original loading floor (2). The holding element is arranged in an opening region (5) of an additional floor plate (1) by the base body. An elongate bar is attached at the plate, and placed in another opening region (6) of the plate. The bar downwardly projects towards the floor. A small distance is provided between a lower side of the body and a bottom of the opening region, and a circumferential surface of the base body and an inner surface of a side wall of the former opening region.