Fastener marking machine

The invention relates to the field of fastener marking, in particular to a fastener marking machine. The fastener marking machine comprises a rack, a rotating disc driving device is arranged on the rack, a rotating disc is arranged at the driving end of the rotating disc driving device, at least two clamps used for clamping fasteners are arranged on the rotating disc in the circumferential direction of the rotating disc at intervals, and a direct-acting driving device located below the rotating disc is further arranged on the rack. A positioning part is arranged at the driving end of the direct-acting driving device, and positioning matching parts are arranged at the positions, corresponding to the clamps, of the rotary table; when the corresponding clamp rotates to the position below the marking head along with the rotating disc, the positioning matching part corresponding to the clamp is used for being matched with the positioning part in a positioning mode so that the position precision of the clamp can be