This locknut secures bearings or accessories onto a shaft by threaded engagement, transferring axial clamping force once tightened against the adjacent component. Main dimensions follow DIN 981, with a width of 7.0 mm and a net mass of 42.0 g, giving a compact ring profile suited for tightening with a matching lock washer. The part is designed for axial fixation on threaded shaft sections, allowing the mounted element to be locked in position without additional fasteners. Its standardized dimensions ensure compatibility with corresponding lock washers and threaded seats machined to the same DIN 981 reference, making installation straightforward using a spanner wrench sized to the KM6 profile.