Frequently Asked Questions
How do these screws prevent corrosion in the screw hole?
The screw reaming wing expands the hole slightly, allowing the sealing plastic to be squeezed evenly around the exposed metal section, creating a protective barrier against the elements.
Are these screws effective against heavy rain and leakage?
Yes. We use a 23mm diameter high weather-resistant plastic gasket that creates a much larger and tighter seal against corrugated plates compared to standard screws.
How much can these screws improve wind resistance?
Due to the 25mm large cap design, the effective protection area is increased by 108%, which can improve wind resistance performance by more than 3 times.
What colors are available for matching roof plates?
Standard colors include Brick Red, Gray, Dark Green, and Blue. We also offer customized color options to match your specific requirements.
What is the advantage of the anti-corrosion coating?
Our specialized coating offers 7 to 10 times higher corrosion resistance than traditional galvanized or paint-coated screws, significantly extending the product's lifespan.
What industries typically use these waterproof screws?
They are widely used in the construction industry, rail transit equipment, and any application requiring secure, weatherproof fastening for metal or corrugated plates.