Ideal for metal to metal applications and provides exceptional corrosion resistance especially when fastening roofing panels to metal structures. Includes 90 screws and self-sealing neoprene washers. No pre-drilling necessary. Screws tap their own heads. Provides secure fastening with strong holding power. Engineered drill point and flute (pilot section) helps remove material efficiently and sizes the hole for threads. Precise drill point designed to drill, tap, and fasten all in one motion. High performance drive surfaces and hex head reduce cam-outs to penetrate surface the first time for easy installation. Climacoat premium coating means no streaking from corrosion and rust for long life finish in exterior applications. Self-sealing neoprene washer provides a waterproof seal in harsh outdoor environments.