High Strength A2-70 Self-Drilling Screws for Industrial Assembly
Our A2-70 self-drilling screws are crafted from 304 stainless steel, offering high tensile strength and fatigue resistance for demanding industrial applications. They feature a self-drilling point that eliminates the need for pre-drilling, saving time and labor.
Key Features
- High Tensile Strength: A2-70 grade offers a minimum tensile strength of 700 MPa, providing secure fastening under high loads.
- Self-Drilling Design: Eliminates the need for separate drilling operation, increasing assembly efficiency.
- Fatigue Resistance: Engineered to withstand cyclic loading conditions, reducing risk of failure.
- Corrosion Resistant: 304 stainless steel ensures durability in many industrial environments.
- Standards Compliance: Meets ISO, DIN, ASTM, ASME, ANSI, and JIS standards.
Technical Specifications
| Parameter | Specification |
|---|
| Dimension Specification Range | M2 ~ M8 |
| Effective Length Range | 6 mm ~ 100 mm |
| Mechanical Strength Grades | A2-70, A2-50, A4-70, A4-50 |
| Executed International Standards | ISO, DIN, ASTM, ASME, ANSI, JIS |
| Optional Raw Materials | 304 / 316 stainless steel |
| Surface Treatment | Natural finish, passivation, Dacromet coating, adhesive pre-coating |
Models and Options
Available in various types: tapping, marine, self-drilling, set, chipboard, socket cap, and drywall screws. Custom lengths and coatings available.
Materials and Structure
Manufactured from 304 stainless steel with a self-drilling point design that allows for efficient installation into metal and other materials without pre-drilling.
Applications
Ideal for aerospace, automotive, industrial machinery, construction & infrastructure, and power generation industries.
Customization
Full size customization and OEM services available to meet specific project requirements.
Case Study
Our fasteners have been used in automotive chassis and power generation facilities. A long-term customer in Germany ordered 100,000 PCS and reported greatly reduced maintenance costs and stable operations over a 10-year period.
FAQ
Q: What does A2-70 mean?
A: A2 indicates 304 stainless steel, and 70 indicates a minimum tensile strength of 700 MPa.
Q: Can self-drilling screws be used on multi-layer materials?
A: Yes, they are designed to penetrate multiple layers without pre-drilling, depending on material hardness.
Q: What sizes are available?
A: We offer M2 to M8 sizes with lengths from 6mm to 100mm.
Q: Are these screws suitable for high vibration environments?
A: Yes, they have high tensile and anti-fatigue properties, making them suitable for high vibration conditions.
Q: Do you provide surface treatment options?
A: Yes, natural finish, passivation, Dacromet, and adhesive pre-coating are available.
Q: Can I get a sample for testing?
A: Please contact us to discuss sample availability.
Q: What certifications do you have?
A: We have ISO 9001, ISO 14001, ISO 45001, and PED certifications.
Inquiry Information
Contact Michael Shen at michaelshen@uhc-group.com.cn or sales@uhc-group.com.cn, or call +86 13575349247.
Image Filename: a2-70-self-drilling-screws.png
Alt: A2-70 stainless steel self-drilling screws
✓ Verified Elite Supplier
