Our factory produces high-quality DIN603 Cup Head Square Carriage Bolts and Round Head Bolts in both 4.8 and 8.8 grades. These bolts are commonly used in construction, woodworking, and furniture-making. Our bolts are made from durable materials and undergo rigorous quality control processes to ensure they meet industry standards. As a factory, we are committed to providing our customers with competitive pricing, reliable lead times, and exceptional customer service. Contact us today for your bolt needs!