Another crucial aspect of bolt structure is the surface treatment of bolts, which can significantly improve their performance. Surface treatments such as galvanization, coating, or anodizing can enhance a bolt's resistance to corrosion and wear, extending its service life. For instance, galvanized bolts are coated with zinc to prevent rusting, making them suitable for outdoor applications. Similarly, anodized bolts, commonly used in aluminum alloys, have a protective oxide layer that not only enhances corrosion resistance but also improves aesthetic appeal.

3. Versatility CSK head self-drilling screws can be used in various materials, including metal, wood, and plastic. Their versatility makes them a preferred choice for both residential and commercial construction projects.

Common Applications

 Overall, the introduction of high-quality black flange bolts in a variety of sizes, including DIN6921 hexagonal flange bolts, is a significant development that underlines the company’s commitment to innovation and excellence. With its durability, versatility and aesthetics, the new product line is designed to meet the needs of industries that require only the best fastening solutions.