The invention relates to a hexagonal screw production process, and relates to the technical field of screw manufacturing. The hexagonal screw production process comprises the following steps of A, wire drawing, specifically, drawing a reinforcing steel bar to obtain a wire rod convenient to process; B, annealing, specifically, annealing the wire rod; C, pickling, specifically, pickling the wire rod; D, cleaning; E, phosphatizing, specifically, phosphatizing the wire rod; F, saponification, specifically, washing the wire rod with water, hanging the wire rod into saponification liquid, and performing saponification for 3-7 minutes at the temperature of 75-80 DEG C; G, finish drawing, specifically, sending the wire rod into a finish drawing machine to be subjected to multi-stage wire drawingtreatment; H, heading; I, tail clamping; J, spiral line making; K, surface treatment; and L, electroplating. In order to solve the problem that in an existing hexagonal screw machining process, the wire rod is greatly influenced by temperature, the production process has the effects that the wire rod is cooled in the wire drawing process, and the wire drawing precision is improved.