We are a factory of DIN912 Gr10.9 Black Oxide Bolt Screws Hexagon Socket Head Allen Bolt Zinc Plated Allen Hexagon Socket Extra Long Hex Machine Bolts. Our products are of the highest quality and are made from durable materials that are able to withstand heavy use and extreme conditions. Our bolts are black oxide coated for long-lasting protection from corrosion and rust, and are available in a variety of sizes to fit any application. We take pride in our attention to detail and commitment to excellence, ensuring that our products meet the highest standards of quality and durability. Whether you are in need of bolts for industrial, automotive or construction applications, our company has the expertise and resources to provide you with the perfect solution.