To obtain a screwed assembly with a high load
capacity for sheet metal parts with a thickness
of 0.8 mm or more, made of steel, light alloys,
non-ferrous metals (up to a hardness of HRB
The anchoring in the part takes place under
pressure from the press.
The ideal pressure for fitting is determined by
tests, depending on the type of sheet metal,
values given for example, in the choice of the
To obtain maximum anchoring, the dimensions
and tolerances of the rough hole must be observed.