Method for making an assembly screw undismountable

摘要

Method for making a screw 23 for assembling parts 24, 25 undismountable, the screw having in its head 27 a hollow screwing recess 26 consisting, after assembly of the said parts by the said assembly screw, in embedding in its hollow recess 26 an element 28 by giving rise to plastic deformation of this element 28 and/or of the lateral internal wall of the said hollow recess 26 and up to a depth such that the said element 28 is held firmly in the said hollow recess 26 and it is impossible to introduce a tool into this recess so as to manoeuvre the said assembly screw. <IMAGE>