Handan Yanzhao Fastener Manufacturing Co., Ltd. is a modern enterprise and specializes in the production of DIN &GB optical hexagon bolts and nuts. We have the most advanced cold heading machinery and equipment, first-class technical talents and a strict product quality assurance system.Our products have high quality and reliable performance and are in line with national standards. They are widely used in electric power, mining, transportation, building, machinery manufacturing, construction and electronic industries and are exported to many countries and regions. Our company has won a good reputation and credibility among customers. Our ultrashort-type bolts have filled the blank of our country.Please feel free to contact us for further information.