DIN7504K Hex Washer Self-Drilling Screw
DIN7504K Hex Washer Self-Drilling Screws are widely used in construction and manufacturing. With a hexagonal head and integrated washer, they allow quick installation, resist loosening, and provide a secure hold for metal-to-metal applications.
Product Description
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: L/C,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.
Why Choose Xinchi Fastener Factory
Xinchi Fastener Factory is a trusted supplier of high-quality fasteners, including DIN7504K Hex Washer Self-Drilling Screws. Our advantages include:
- Established Experience: Founded in 2007, Xinchi operates an ISO 9001–certified factory, specializing in cold-forged fasteners for furniture, construction, automotive, and machinery.
- Advanced Manufacturing: With 102 cold heading machines and a daily output exceeding 10 million pieces, our new 30,000 m² plant with two six-story buildings ensures high efficiency and quality.
- Strategic Location: Based in Anji, Zhejiang Province, near Shanghai and Ningbo ports, enabling fast and efficient global shipping.
- Rigorous Quality Control: 99% GO-NO GO gauges, optical screening, and salt spray testing guarantee reliable, corrosion-resistant fasteners.
- Customer-Focused Service: Flexible packaging, trial orders, priority production options, and after-sales support with free replacement for quality issues.
- Customization & R&D: Strong capabilities in product development and customization allow Xinchi to meet specific customer needs and support new product design.
By choosing Xinchi, you gain a reliable partner for high-quality DIN7504K Hex Washer Self Drilling Screws, with professional expertise, consistent production, and global support.
