Fixing device for flat components attachable to a framework, in particular solar modules

Fastening device for to be arranged on a frame structure planar components, in particular solar modules, comprising a first and a second, spaced apart, horizontally and parallel to be arranged on the frame structure support rail on which a component in the region of its opposite edges can be fixed, wherein at the bottom of a component ( 3) arranged in the region of the side edges, the component at least partially surrounding edge profile elements (21) are provided with a side edge projecting retaining web (24), which serve the connection with the support rails (8), and that for connecting a profile element (21) with at least one,preferably the first support rail (8) has a holding element (31) with a first attachment portion for attachment to a mounting region (9) of the support rail (8) and a second mounting portion with two projecting to both sides holding portions (35) in the assembled position, the one another opposite holding webs (24) of two side by side to be determined components (3) overlap, is provided.