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.