Ideal for metal to metal applications and provides exceptional corrosion resistance especially when fastening roofing panels to wood structures. Self-sealing neoprene washer provides a waterproof seal in harsh outdoor environments. Climacoat premium coating means no streaking from corrosion and rust for long life finish in exterior applications. High performance drive surfaces and hex head reduce cam-outs to penetrate surface the first time for easy installation. Sharp self-piercing points are ideal for fastening corrugated roofing panels to wood structures. Engineered drill points and flutes (pilot sections) remove material efficiently and size the hole for threads.