A bearing pin (1) for locking pieces (2, 21, 22), in particular a motor vehicle door lock (3), in which the locking pieces (2, 21, 22) are at least partially rotationally mounted on the bearing pin (1) forming a bearing axis (L), comprising a carrier plate (4) which is made of a shape-retaining material, in particular metal, and which supports at least one locking piece (2, 21, 22), and from which a clip-shaped form (41) is formed in essentially the axial direction of the bearing axis (L) with the bearing pin (1) being formed by means of plastic extrusion coating (5) about the clip-shaped form (41).