The hardware screw high-speed checkweigher is widely used for unsupervised inspection of product quantitative small packaging and packing process. Online dynamic check weigher can automatically reject unqualified products, and is equipped with sound and light alarms, automatic recording and data storage, which can fully meet the needs of enterprises in assembly line production In the process, the quality management needs of less, missed, and over-installed due to human error are realized to achieve unmanned, high-speed, and high-accurate quality control.