60PCS Self-Drilling Metal Screws 4.8 x 55MM Stainless Steel Hexagonal Self-Drilling Screws for Metal Waterproof Screws with Seal for Roofing Sheet Metal Self-Drilling Self-Drilling for More Secure Fix

60PCS Self-Drilling Metal Screws, Size: 4.8x55MM, Combination of Stainless Steel Self-Drilling Screws and Seals: Screw Heads and Washers. These self-drilling roofing screws are made of durable steel, zinc-plated for excellent corrosion resistance. The self-drilling metal screws and washers have a special coating that is not easily damaged during screwing. This ensures high resistance to mechanical damage during installation, insensitivity to UV rays, and a long-lasting color that matches the roof covering. Steel roofing screws are easier to install and avoid the common problems and breakage associated with Phillips head screws. You can install and remove them as needed. Special drilling points ensure that the steel roofing screws are easier and faster to install. These watertight screws with sealing washers do not require pre-drilling. It is recommended to use a suitable wrench for installation. Zinc-plated sheet metal screws with washers are strong, durable, reliable, and long-lasting. Self-drilling screws prevent water from entering through the screw hole, seal and secure the joint, ensure a solid connection, seal the joint, and prevent corrosion. These sheet metal screws are flexible and resistant to high temperatures, thus extending their lifespan. These self-drilling sheet metal screws are suitable for: sheet metal fastening, gutter fixing, sheet metal roofing, metal structures, etc. Self-drilling sealing discs are used to fix sheets, profiles, and panels to wooden supports. Sheet metal roofing screws are highly resistant to mechanical damage, which is crucial during installation.