Specification of DIN7504K Hex Washer Self-Drilling Screw
The DIN7504K Hex Washer Self-Drilling Screw is manufactured according to international DIN7504K standards(ANSI B18.6.4), ensuring precise dimensions, consistent quality, and reliable self-drilling performance. Each size is designed for a secure fit and optimal load distribution, making it ideal for a wide range of metal-to-metal applications.
| d |
ST3.5 |
(ST3.9) |
ST4.2 |
ST4.8 |
ST5.5 |
ST6.3 |
| c |
min. |
0.6 |
0.6 |
0.9 |
0.9 |
1 |
1 |
| dc |
max. |
8.3 |
8.3 |
8.8 |
10.5 |
11 |
13.2 |
| min. |
7.6 |
7.6 |
8.2 |
9.8 |
10 |
12.2 |
| f2) |
≈ |
0.4 |
0.4 |
0.4 |
0.5 |
0.5 |
0.5 |
| e |
min. |
5.96 |
5.96 |
7.59 |
8.71 |
8.71 |
10.95 |
| k |
max. |
3.45 |
3.45 |
4.25 |
4.45 |
5.45 |
6.45 |
| k’2) |
min. |
3.2 |
3.2 |
4 |
4.15 |
5.15 |
6.15 |
| min. |
1.55 |
1.55 |
1.9 |
2 |
2.7 |
3.3 |
| n |
Nominal size |
1 |
1 |
1.2 |
1.2 |
1.6 |
1.6 |
| min. |
1.06 |
1.06 |
1.26 |
1.26 |
1.66 |
1.66 |
| max. |
1.2 |
1.2 |
1.51 |
1.51 |
1.91 |
1.91 |
| r |
max. |
0.5 |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
| s |
Nominal size |
5.5 |
5.5 |
7 |
8 |
8 |
10 |
| min. |
5.32 |
5.32 |
6.78 |
7.78 |
7.78 |
9.78 |
| t |
min. |
1 |
1 |
1.2 |
1.4 |
1.6 |
1.8 |
| max. |
1.4 |
1.4 |
1.6 |
1.8 |
2 |
2.2 |
Payment Terms: T/T
Packaging & Shipping
- Packaging: Plastic woven bag, carton, or according to customer requirements
- Shipping: Container shipping
- Port of Loading: Ningbo/Shanghai
Features of DIN7504K Hex Washer Self-Drilling Screw
DIN7504K Hex Washer Self-Drilling Screws are designed with features that make them efficient, reliable, and easy to use in demanding applications.
- Self-Drilling Tip: The sharp drill point allows the screw to penetrate metal surfaces without pre-drilling, saving time and effort.
- Hex Washer Head: The integrated washer distributes pressure evenly, prevents material damage, and provides a secure grip with a wrench or socket.
- Corrosion-Resistant Finish: Available in zinc-plated or galvanized finishes, ensuring durability even in outdoor or high-moisture environments.
- Durable Material: Made from high-quality steel or stainless steel, these screws resist wear and maintain performance over time.
- Versatile Size Options: Various diameters and lengths allow the screw to adapt to multiple material thicknesses and fastening needs.
Advantages of DIN7504K Hex Washer Self-Drilling Screw
Choosing DIN7504K Hex Washer Self-Drilling Screws provides several benefits for both professionals and DIY users:
- Efficient Installation: Eliminates pre-drilling, reducing installation time and labor costs.
- Reliable Strength: High-quality material and robust design ensure secure, long-lasting fastening.
- Even Load Distribution: The integrated washer prevents material damage and enhances screw stability.
- Cost-Effective Solution: Combines drilling and fastening in one step, minimizing the need for additional tools or fasteners.
- Wide Application Range: Suitable for construction, automotive, industrial, and outdoor projects, providing versatility across tasks.
Applications of DIN7504K Hex Washer Self-Drilling Screw
DIN7504K Hex Washer Self-Drilling Screws are widely used in projects that require strong, durable fastening:
- Metal-to-Metal Assembly: Ideal for securing metal panels, frames, and brackets in construction and industrial settings.
- Automotive Applications: Used in vehicle body assembly, chassis components, and equipment mounting.
- Roofing and Outdoor Installations: Corrosion-resistant screws are perfect for exterior panels, metal roofs, and outdoor equipment.
- Industrial Equipment: Fastens machinery, factory panels, and heavy metal components efficiently without pre-drilling.
