AS3566 Screws for Durable Roofing and Steel Applications BDN Fasteners India Pvt. Ltd. offers AS3566 Screws designed for applications requiring dependable corrosion protection and long-term fastening performance. Our roofing fasteners are available with protective coating options compliant with AS 3566 Class 3 and Class 4 requirements. They are suitable for metal roofing, cladding, and steel-to-steel applications, including demanding coastal and industrial environments. With strong drilling performance, reliable grip, and weather-resistant protection, our screws support durable construction connections. Learn more: https://bdnfastenersindia.in/metal-tite-self-drilling-screws/crest-fixing-fasteners.php