Patent ID: 8302573

Claim:
A hydraulic camshaft adjuster for an internal combustion engine, comprising: a drive part which can be drive-connected to a crankshaft; an output part having a central, first axial opening for a rotatably fixed connection to a first camshaft and being mounted such that the output part can be adjusted rotatably with respect to the drive part; a hydraulic actuating mechanism, by which a rotary angle position between the drive part and the output part can be adjusted; and a screw plug which is screwed to the drive part for closing the central, first axial opening, the screw plug being manufactured from a shaped part which is produced by a forming process without removal of material, wherein the screw plug comprises a shank section which has a thread and an edge section which is formed integrally on the shank section, and a sealing means that is arranged between the edge section and the drive part, the edge section has a first axial depression for receiving the sealing means, and a transition section of the edge section, which is situated between the shank section and the first axial depression, has an elastic deformability such that automatic release of the screw plug is avoided by a reduction in a loss of a prestressing force in a screw connection.