High-Strength Rustproof Material
These metal roofing screws are made of durable 1022A carbon steel with Ruspert or weather-resistant coating. They pass 1000-1500 hour salt spray test for great anti-rust and anti-corrosion performance.
Superior Leakproof Sealing
Built-in EPDM rubber washers provide tight and flexible sealing. They effectively prevent water leakage and keep out dust and debris in rainy or snowy weather.
Self-Drilling & Easy to Use
With sharp Type 17 self-drilling tips and high-low threads, these screws go through metal and wood easily with no pre-drilling required.
Stable & Convenient Installation
Standard 1/4" hex drive and optional magnetic design allow fast, stable installation, even in overhead, high-altitude or narrow spaces.
Various Sizes & Wide Uses
They can be used for sheds, silos, store roofs, barns, sloping roofs and metal wall panels.