Welcome to Handan Haosheng Fastener Co., Ltd., one of the leading square nuts factories in China. Our company is dedicated to providing high-quality square nuts that meet the DIN557 standard. As a reputable manufacturer and supplier, we ensure that our square nuts are produced with precision and accuracy to meet the requirements of various industries.

Our square nuts are made from premium materials, ensuring their durability and reliability in different applications. Whether you need square nuts for construction, machinery, or automotive purposes, we have the capability to meet your needs. With our advanced equipment and skilled technicians, we can fulfill orders of any size while maintaining consistent quality.

At Handan Haosheng Fastener Co., Ltd., we prioritize customer satisfaction and strive to exceed expectations with every square nut we produce. By choosing us as your supplier, you can count on receiving top-notch products that adhere to the DIN557 standard. Contact us today to learn more about our square nuts and how we can meet your specific requirements.