Method for manufacturing a profiled rod

A method for manufacturing a profiled rod from a rod-shaped metal blank having a first end and a second end located opposite the first end, and having a longitudinal axis extending through the first end and through the second end, the method comprising:

• a first deformation step, in which the blank is embedded in a first die arrangement, and subsequently, the blank is axially compressed so as to radially displace blank material within the first die arrangement to form a first surface protrusion structure on the blank;
• and
• following the first deformation step, a second deformation step, in which the blank is embedded in a second die arrangement, and subsequently, the blank is axially compressed so as to radially displace blank material within the second die arrangement to form a second surface protrusion structure on the blank, wherein at least a section of the second surface protrusion structure is closer to the first end of the blank than the first surface protrusion structure is.

A screw comprising:

• at least one screw thread, wherein in at least one sectional plane of the screw thread including a longitudinal axis of the screw, all flow lines of the screw thread are strictly convex with respect to the longitudinal axis of the screw.