An integrated magnetic and mechanical device for anchoring structural elements of an assembly. The device comprises a first and a second junction element partially or totally made of ferromagnetic material, which can be connected to respective structural elements of the assembly, and at least one magnetic core having end anchoring faces each provided with at least one magnetic pole, in which the magnetic core extends along a longitudinal axis and anchors to bottom walls of the junction elements. The junction elements and the magnetic core are also configured themselves, or provided with mechanical interconnection members so as to increase, in combination with the magnetic anchorage, the resistance to external stresses and to prevent any relative movement between the junction elements in an assembled condition.