Fastening having inner deformable hollow element and outer sleeve

摘要

A plastic fastening element is configured to be fastened on a threaded bolt welded to a support member. The fastening element includes a first hollow element portion made of plastic material and having an axial through hole. The through hole has a polygonal cross section and radially resilient wall portions that will be radially outwardly deformed if the first element portion is pushed onto the threaded bolt. The fastening element also includes a second hollow annular element portion which is connected to one end of the first element portion by a breakable connecting portion. The second element portion has an inner cross section dimensioned such that the second element portion can be pushed over the first element portion under radial deformation of the resilient wall portions, whereby a thread of the threaded bolt is partially formed into the resilient wall portions of the first element portion.