DIN7505 Standard Cross Countersunk Self Tapping Galvanized Screw
1.Products Details:
High-strength fiberboard self-tapping screws are specialized fasteners engineered for securely fastening materials to high-density fiberboard (HDF) and medium-density fiberboard (MDF). Crafted from premium-grade steel, often with surface treatments like zinc plating or black oxide coating, these screws combine robust mechanical properties with enhanced corrosion resistance. Their unique design features a sharply pointed tip that effortlessly penetrates fiberboard without pre-drilling, reducing installation time. The deep, finely pitched threads are optimized to cut into the fibrous structure of the board, creating a tight, reliable hold. Additionally, heads come in various types—Phillips, flat, or pan—to suit different aesthetic and functional requirements, and some models include wafer heads for increased pull-out resistance.
2.Key Features
1. Ease of Installation:
The self-tapping design eliminates the need for pre-drilling, allowing for quick and straightforward assembly, which significantly boosts efficiency in construction, furniture making, and DIY projects.
2. Superior Holding Power:
With deep, aggressive threads, these screws firmly grip the fiberboard, ensuring long-lasting stability and preventing loosening over time, even under heavy loads or vibrations.
3. Cost-Effective:
By streamlining the installation process and reducing the need for additional tools and labor, they lower overall project costs while maintaining high performance standards.
4. Corrosion Resistance:
Surface treatments protect against rust and environmental damage, making them suitable for both indoor and certain outdoor applications, thus extending the lifespan of the fastened structures.
5. Versatility:
Compatible with different fiberboard densities and thicknesses, they can be used in a wide range of applications, from cabinetry and shelving to structural framing and decorative paneling.
6. Minimal Material Damage:
The sharp tips and precise threading minimize splitting and cracking of the fiberboard, preserving the material’s integrity and appearance.
3.Technical Parameters
| Specification | ST3 | ST3.5 | ST4.0 | ST4.5 | ST5 | ST6 |
| P | 1.35 | 1.6 | 1.8 | 2 | 2.2 | 2.6 |
| dk | MAX | 6.05 | 7.05 | 8.05 | 9.05 | 10.05 | 12.05 |
| MIN | 5.7 | 6.64 | 7.64 | 8.64 | 9.64 | 11.6 |
| k | 3.2 | 3.6 | 4.25 | 4.6 | 5.2 | 6.2 |
| M | 3.1 | 4 | 4.4 | 4.8 | 5.3 | 6.6 |
| d | MAX | 3 | 3.5 | 4 | 4.5 | 5 | 6 |
| MIN | 2.8 | 3.3 | 3.75 | 4.25 | 4.7 | 5.7 |
| dp | MAX | 1.9 | 2.2 | 2.5 | 2.7 | 3 | 3.7 |
| MIN | 1.7 | 2 | 2.25 | 2.45 | 2.7 | 3.4 |
| d2 | 3 | 3.5 | 4 | 4.5 | 5 | 6 |
4.Certificate Display
5.Production Process
6.Packaging and shipping Details
Product Tags:
|
|
Zinc Plated DIN7505 Standard Cross Countersunk Self Tapping Galvanized Screw For Building Projects Images
|
