Product Details
Our wholesale DIN 912 bolts are a testament to advanced manufacturing and material science. The “High-Strength” designation is achieved by utilizing premium A2 (304) and A4 (316) grade stainless steel, which is then subjected to a cold-working process to significantly increase its tensile and yield strength. This results in fasteners with impressive load-bearing capabilities, such as the A2-70 grade, which boasts a minimum tensile strength of 700 MPa. The design adheres strictly to the DIN 912 specification, featuring a tall cylindrical head for robust engagement in counterbored holes and a deep, clean-cut internal hex socket that allows for precise, high-torque tightening. This combination ensures maximum clamping force and resistance to loosening under vibration. The bolts are supplied with a plain, passivated finish, leveraging the natural chromium oxide layer of stainless steel for a self-healing, maintenance-free barrier against corrosion.
Product Parameters
The technical specifications for our wholesale High-Strength DIN 912 Stainless Steel Bolts are provided below, ensuring consistent quality for your large-volume orders.
| Parameter | Specification |
|---|
| Product Name | Wholesale DIN 912 High-Strength Stainless Steel Hex Socket Bolts |
| Standard | DIN 912 |
| Material | High-Strength Stainless Steel (A2/304, A4/316) |
| Grade | A2-70, A4-70, A4-80 |
| Surface Treatment | Plain / Passivated |
| Head Style | Cylindrical Head |
| Drive Style | Internal Hex Socket (Allen) |
| Diameter Range | M4 – M24 (Wider range available upon request) |
| Brand Name | Duojia |
| Place of Origin | Hebei, China |
| Key Feature | High tensile strength combined with superior corrosion resistance for bulk supply |
| Application | Heavy Industry, Aerospace, Renewable Energy, Structural Engineering |
Product Features
By choosing our wholesale supply, you gain access to fasteners with a distinct set of performance and business advantages.
- Engineered for High-Stress Performance: Specifically manufactured to high-tensile grades like A2-70 and A4-80, these bolts are designed to maintain joint integrity under severe dynamic loads, high pressure, and constant vibration, making them superior to standard stainless steel fasteners.
- Factory-Direct Wholesale Advantage: Sourcing directly from our factory eliminates intermediary costs, providing you with the most competitive pricing for bulk orders. Our large production capacity (500 tons/month) ensures consistent quality and on-time delivery for your production schedules.
- Dual-Benefit Material Superiority: These bolts eliminate the typical trade-off between strength and corrosion resistance. You get the mechanical performance of a high-strength fastener combined with the intrinsic, permanent corrosion protection of stainless steel, ideal for outdoor and harsh environments.
- Precision for Automated Assembly: Manufactured with exceptionally tight tolerances and clean, burr-free threads, our bolts are optimized for use in automated and robotic assembly lines, reducing downtime and ensuring a smooth, efficient production process.
- Exceptional Long-Term Value: The initial investment in high-strength stainless steel is returned through significantly lower maintenance costs, zero risk of failure from rust, and enhanced reliability of the final product, protecting your brand’s reputation for quality.
Product Applications
Our high-strength DIN 912 stainless steel bolts are critical components in industries where failure is not an option. They are extensively used in structural and architectural engineering for assembling glass facades, balustrades, and canopies that require both strength and weather resistance. In the renewable energy sector, they are essential for constructing solar panel mounting systems and wind turbine assemblies that must endure decades of outdoor exposure. The aerospace and defense industries utilize them for non-magnetic, high-strength fastening in instrumentation and vehicle assembly. They are also fundamental in the manufacturing of heavy industrial equipment, such as chemical reactors, high-pressure vessels, and mining machinery, where both robust mechanical properties and resistance to corrosive materials are simultaneously required.
