We are a factory that produces high-quality DIN603 carriage bolts with a round head and square neck. Our bolts are made of premium materials to ensure durability and long-lasting performance. These bolts are widely used in construction, automotive, and manufacturing industries to fasten machine parts securely. The round head with a smooth finish makes it easy to tighten without any sharp edges. The square neck provides extra grip and stability during installation. At our factory, we take pride in delivering only the best quality bolts to meet the needs of our customers. Our DIN603 carriage bolts are available in various sizes, finishes, and materials to meet specific requirements. Contact us today to order your carriage bolts.