Camshaft comprising a support shaft and a component with a passage opening for receiving the support shaft, wherein a. the support shaft comprises a plurality of fastening regions (11a, 11b, 11c, 11d) and positioning regions (13a, 13b, 13c, 13d) alternately arranged axially, b. the passage opening of the component comprises a plurality of axially spaced fastening sections (5a, 5b, 5c, 5d), c. between two axially adjacent fastening sections (5a, 5b, 5c, 5d) a positioning section (7a, 7b, 7c) is arranged in each case, d. the diameter of the support shaft in the positioning regions (13a, 13b, 13c, 13d) is smaller than the diameter of the passage opening in the fastening sections (5a, 5b, 5c, 5d), e. the diameter of the support shaft in the fastening regions (11a, 11b, 11c, 11d) is smaller than the diameter of the passage opening in the positioning sections (7a, 7b, 7c), f. the diameter of the support shaft in the fastening regions (11a, 11b, 11c, 11d) is greater than the diameter of the support shaft in the positioning regions (13a, 13b, 13c, 13d), g. the diameter of the passage opening in the fastening sections (5a, 5b, 5c, 5d) is smaller than the diameter of the passage opening in the positioning sections (7a, 7b, 7c), h. and wherein the axial extent of the fastening regions (11a, 11b, 11c, 11d), positioning regions (13a, 13b, 13c, 13d), fastening sections (5a, 5b, 5c, 5d) and positioning sections (7a, 7b, 7c) is such that there is a first axial position of the component relative to the support shaft, in which all fastening sections (5a, 5b, 5c, 5d) of the component fall completely within positioning regions (13a, 13b, 13c, 13d) of the support shaft and all positioning sections (7a, 7b, 7c) of the component in each case overlap a fastening region (11a, 11b, 11c, 11d) of the support shaft in axial direction, characterized in that all fastening regions (11a, 11b, 11c, 11d) have a first axial extent, all positioning regions (13a, 13b, 13c, 13d) have a second axial extent, all fastening sections (5a, 5b, 5c, 5d) have a third axial extent, all positioning sections (7a, 7b, 7c) have a fourth axial extent and in that the first axial extent is smaller than the fourth axial extent and the the third axial extent is smaller than the second axial extent. a. the support shaft comprises a plurality of fastening regions (11a, 11b, 11c, 11d) and positioning regions (13a, 13b, 13c, 13d) alternately arranged axially, b. the passage opening of the component comprises a plurality of axially spaced fastening sections (5a, 5b, 5c, 5d), c. between two axially adjacent fastening sections (5a, 5b, 5c, 5d) a positioning section (7a, 7b, 7c) is arranged in each case, d. the diameter of the support shaft in the positioning regions (13a, 13b, 13c, 13d) is smaller than the diameter of the passage opening in the fastening sections (5a, 5b, 5c, 5d), e. the diameter of the support shaft in the fastening regions (11a, 11b, 11c, 11d) is smaller than the diameter of the passage opening in the positioning sections (7a, 7b, 7c), f. the diameter of the support shaft in the fastening regions (11a, 11b, 11c, 11d) is greater than the diameter of the support shaft in the positioning regions (13a, 13b, 13c, 13d), g. the diameter of the passage opening in the fastening sections (5a, 5b, 5c, 5d) is smaller than the diameter of the passage opening in the positioning sections (7a, 7b, 7c), h. and wherein the axial extent of the fastening regions (11a, 11b, 11c, 11d), positioning regions (13a, 13b, 13c, 13d), fastening sections (5a, 5b, 5c, 5d) and positioning sections (7a, 7b, 7c) is such that there is a first axial position of the component relative to the support shaft, in which all fastening sections (5a, 5b, 5c, 5d) of the component fall completely within positioning regions (13a, 13b, 13c, 13d) of the support shaft and all positioning sections (7a, 7b, 7c) of the component in each case overlap a fastening region (11a, 11b, 11c, 11d) of the support shaft in axial direction, characterized in that all fastening regions (11a, 11b, 11c, 11d) have a first axial extent, all positioning regions (13a, 13b, 13c, 13d) have a second axial extent, all fastening sections (5a, 5b, 5c, 5d) have a third axial extent, all positioning sections (7a, 7b, 7c) have a fourth axial extent and in that the first axial extent is smaller than the fourth axial extent and the the third axial extent is smaller than the second axial extent.