Device and method for securing a screw connection from turning loose

摘要

The device (10) has a disk-shaped body (12) with a front side (14), a rear side (16) and a preferably central through hole (18) which connects the front side (14) with the rear side (16) . The front side (14) and the rear side (16) each have an inner annular surface (20, 22) which is flat and an outer annular surface (24, 26) which is profiled. The device (10) can expediently be used together with a screw (30) or a nut (38) with a profiled underside (36, 40). When tightening, the profiled underside (36; 40) of the screw head (32) or the nut (38) can impress itself in one of the inner, flat annular surfaces (20, 22) of the disk-shaped body (12), while one of the outer, profiled ones Annular surfaces (24, 26) of the disk-shaped body (12) are stamped into a contact surface (42) of a component (44) to be connected to the screw connection (48).