Hexagon second punch of Heading Dies for Hexagon head screws, inluding self tapping screw & self drilling screws, etc. Work with one die two blow heading machines. Hexagon Punch is a precision tooling component used in screw heading dies for forming hexagon drive heads during cold heading production. It is widely applied in screw heading machines to ensure stable forming accuracy and consistent production quality. Manufactured from high-quality tool steel or carbide, it provides strong wear resistance and reliable performance in continuous production environments. Over 10+ years tooling manufacturing experience. Send drawing for quick quotation within 24 hours. Manufacturing steps to make self drilling screw with washer: Finished wire -- Heading -- Self Drilling Screw Point Forming -- Thread Rolling -- Heat treatment -- Surface treatment -- Screw Washer Assembly -- Packing We Airon Machinery supply full line equipment for self drilling screw manufacturing, including Heading Machine, Thread Rolling Machine, Self Drilling Screw Point Forming Machine, Screw Washer Assembly Machine, Heat treatment equipment etc.