China Suppliers Factory Galvanized Steel Self-Tapping Screws for Roofing Tile Fixing on Steel Frame
| Product Name | Hole-expanding self-tapping 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.
Frequently Asked Questions
Q: 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 resistance to rust and corrosion, ensuring a long service life.
Q: What sizes are available for these self-tapping screws?
These screws are available in three standard dimensions: 5.5 * 75mm, 6.3 * 75mm, and 6.3 * 145mm to suit different installation requirements.
Q: What is the expected service life of this screw?
Designed for long-term structural integrity, these hole-expanding self-tapping screws have a service life of up to 50 years.
Q: How does this screw improve the installation process?
Its design allows for a simple and fast installation process. This significantly shortens the construction period, lowers overall labor and installation costs, and maintains high construction quality.
Q: What is the weight of a single screw?
Each individual hole-expanding self-tapping screw weighs approximately 14 grams.