Premium Materials & Strong Protection
These metal roofing screws are made of high-strength 1022A carbon steel with Ruspert or weather-resistant coating, passing 1000-1500-hour salt spray test for excellent rust and corrosion resistance.
Excellent Leakproof Sealing
Built-in EPDM rubber washers provide tight and flexible sealing, effectively preventing water leakage and blocking dust and debris in rainy or snowy weather.
Self-Drilling & Easy Installation
With sharp Type 17 self-drilling tips and high-low threads, these screws can penetrate metal and wood easily without pre-drilling.
Stable & Convenient Design
Standard 1/4" hex drive ensures quick and secure installation, even in overhead, high-altitude or narrow spaces.
Standard Size & Wide Application
50 Pcs #10 x 2-1/2" Silver screws,they can be used for metal roof or wall panel projects, fences,hangars, sheds, silos, store roofs, barns or sloping roofs.