Our Light String Chain offers exceptional quality and style within the Screw category.Self-Drilling Screws used in industrial equipment come in various types, including machine Self-Drilling Screws, wood Self-Drilling Screws, and specialty Self-Drilling Screws. Each type serves specific functions, such as fastening parts securely or providing a secure connection. Consult with a reliable supplier to determine the best Self-Drilling Screw type for your needs.