An undercut self-cutting spreading anchor and fastening system comprising an undercut self-cutting spreading anchor

摘要

An undercut self-cutting spreading anchor (1), which in an undercut recess (a) of a component to be attached (t) can be secured in a form-fitting manner, wherein the spreading anchor (1) in the basic shape of a hollow-cylindrical expansible fixing plug (2) in a direction of insertion with a rear end region (4.1), interposed in the individual radially to the direction of insertion (e), which can be spread apart expanding elements (3) along is segmented, and at least a plurality of the expanding elements (3) in each case one radially outwardly facing projection (7) to the positive engagement in the undercut (h) of the recess (a) in a fixing position of the drawing, characterized in that the expanding elements (3) in the insertion direction (e) in front of the projection (7) in each case a desired bending point (9) have, on which the expanding elements (3) for engagement in the undercut (h) are radially bent.