China Suppliers Factory Steel Self-Tapping Screw for Roofing Tile Fixing on Steel Frame with Corrosion Resistance
| Product Name | Hole-expanding self-taping screw |
| Material | Galvanized steel |
| Size | 5.5 * 75mm ; 6.3 *75mm ; 6.3 * 145mm |
| Weight | 14g/pc |
| Service life | 50 years |
The installation is simple and fast, greatly shortening the construction period and reducing installation costs, while ensuring the construction quality, bringing users a more economical and easy-to-maintain roof solution.
What material is the Hole-expanding self-tapping screw made of?
The screw is made of high-quality Galvanized steel, which provides excellent durability and corrosion resistance.
What sizes are available for this self-tapping screw?
It is available in three standard sizes: 5.5 * 75mm, 6.3 * 75mm, and 6.3 * 145mm.
What is the expected service life of these screws?
These hole-expanding self-tapping screws are designed for long-term reliability with a service life of up to 50 years.
How does this product improve the installation process?
The installation is simple and fast, which greatly shortens the construction period, reduces labor costs, and ensures robust construction quality.
What is the weight of a single screw?
Each individual hole-expanding self-tapping screw weighs approximately 14g.





