We are a factory specializing in the production of high-quality DIN603 carriage bolt round head square neck. Our screws are made of high-strength steel and zinc-plated to prevent rust and corrosion. These bolts have a round head and square neck, making them easy to grip and tighten. Our products are widely used in construction, machinery, and various industries where a sturdy, reliable connection is required. With strict quality control procedures in place, we guarantee that our bolts will meet your expectations and provide the performance you need. Trust us to provide you with the best DIN603 carriage bolts on the market.