Welcome to Handan Audiwell Metal Products Co., Ltd., a leading manufacturer, supplier, and factory of high-quality fastening solutions in China. Our company is proud to introduce our range of Carriage Bolts and DIN6921, designed to meet the diverse needs of our customers. Our Carriage Bolts are specifically crafted to provide secure and reliable fastening for a wide range of applications, including construction, machinery, and automotive industries. With their smooth, rounded head and square neck, these bolts are ideal for use with wood, metal, and other materials to create strong and durable connections. Similarly, our DIN6921 bolts are manufactured to the highest standards, ensuring exceptional performance and longevity. These bolts feature a flange head and are suitable for applications where a wider bearing surface is required to distribute the load. At Handan Audiwell Metal Products Co., Ltd., we are committed to delivering top-quality products that exceed industry standards. Contact us today to learn more about our Carriage Bolts and DIN6921, and discover how our products can enhance your projects.