The screw head is composed of a screw head, a check ring and a seat ring three-piece set, and is installed on the front end of the screw to produce back pressure when the glue is melted, and injects the plastic material into the mold. Jinyang screw head material is all alloy (full hardening powder alloy steel), SDK61, SACM645, after tempering, quenching, nitriding, full hardening treatment process, Jinyang screw head has the advantage of precision durable, good sealing effect. Applicable to the import of all-electric precision molding machine injection precision gears, connectors, light guide plate lenses and other precision electronic products.
