60 Pcs Self-Drilling Metal Screws 6.3 x 25 mm Stainless Steel Roofing Steel Tapping Screws Trapezoidal Head Hexagonal Washer Sealing Galvanized Silver

【High-Quality Materials】Made of durable, high-quality steel, galvanized for excellent corrosion resistance. The galvanized screws have a special coating process, so the coating won't be easily damaged during screwing. This ensures high resistance to mechanical damage during assembly, is UV-resistant, and provides a long-lasting color that matches the roofing. 【Corrosion-Resistant and Durable】These self-drilling galvanized steel screws are strong, durable, reliable, and long-lasting. The integrated rubber seal prevents water from entering through the screw hole, seals and secures the connection, ensuring a firm connection and protecting against corrosion. The rubber seal is elastic, which prevents the effects of high temperatures on the product and extends its lifespan. 【Convenient Installation and Easy Storage】The hexagonal head of the screws allows for better placement, avoiding the sharp points and breakage common with Phillips head screws. You can install and remove them as needed. Special pre-drilled holes ensure that the screws are easier and faster to install. These screws do not need to be pre-drilled. It is recommended to use a suitable wrench for installation.