Method for manufacturing a long-life mechanical fastener with mushroom-type elements and mechanical fastener produced therefrom

摘要

The mushroom-shaped male component (1) comprising a rod (2) and lateral projection (5) around its edge, also includes a cavity (6). The maximum cross section of the cavity, is less than the maximum cross section of the rod. Independent claims are included for: (1) the method of making the corresponding formation; (2) the strip carrying it; and (3) a forming roller.