Security mechanism for screws, bolts or rivets

Guarantee device, of the type applicable to screws, nuts or rivets, characterized by being formed by a receptacle 1 in the form of an open box, which incorporates at its base a hole 2 of an appropriate diameter that can be traversed by the trunk of a screw 7, nut or rivet and preventing the passage of its head, and on its side a lid 3 attached to one of its sides by means of a hinge 4 and incorporating at least one flange on any of its other sides 5, in such a way that when the lid 3 closes, said flange 5 is closed. fixed to the tab 6 that exists for this purpose inside the receptacle 1, constituting a tongue-and-groove retaining element that prevents the device from opening, If not, it is through its disintegration and forming an impenetrable assembly when the tabs 5 and 6 that make up the tongue-and-groove retaining element housed inside the receptacle 1 meet.