Machining M5 threads with a rolling machine. L. R is a pair of involute rolling wheels with the same parameters, and L wheel can be adjusted by adjusting the mechanism to coincide with the indentation of R wheel on the surface of workpiece P. The workpiece P is positioned and clamped with two central holes. Adjusting the fixture can cause the workpiece to move axially. When subjected to force, it can swing around the axis parallel to the machine spindle at point O on the fixture by a Φ angle to ensure that the workpiece always maintains a free rolling state with the two rolling wheels during the cold rolling process, and is also convenient for clamping the workpiece.