In addition to their pointed tips, self-drilling screws often come with various coatings, such as zinc plating or ceramic finishes, which enhance their resistance to rust and environmental elements. These coatings not only extend the lifespan of the screws but also improve their aesthetic appeal, making them suitable for visible applications.

Structural fasteners play a vital role in construction and manufacturing, providing the necessary strength and reliability to hold various components together. These fasteners can be categorized into several types based on their design, application, and mechanical properties. Understanding the different types of structural fasteners is crucial for engineers, architects, and builders, as selecting the appropriate fastener can significantly impact the structural integrity and safety of a project.

2. Head Design The wafer head design provides an expanded bearing surface, allowing for better load distribution when fastened. This is essential in applications where a secure connection is critical to performance and safety.