Stainless Steel Hex Socket Head Cap Screws DIN912
Hex Socket Head Cap Screws DIN912 are one of the most widely used fasteners in mechanical and structural applications, renowned for their high tensile strength, precision threading, and excellent corrosion resistance. These screws are vital in applications where space is limited, yet strong and secure fastening is required.
At Flybear Fastener, we supply premium quality stainless steel Hex Socket Head Cap Screws that comply with global standards to ensure maximum performance and longevity in demanding environments.
Product Overview
Hex Socket Head Cap Screws classified under DIN912 standard are designed with a cylindrical head and a recessed hex-shaped drive. This allows the screws to be installed with a hex (Allen) key, providing better torque transfer compared to standard slotted or Phillips screws. Commonly made from Stainless Steel, these screws are ideal for applications requiring both strength and corrosion resistance.

Product Specifications
| Specification | Detail | 
|---|---|
| Product Name | Hex Socket Head Cap Screws | 
| Standard | DIN912 | 
| Drive Type | Internal Hex | 
| Head Type | Cylindrical | 
| Material | Stainless Steel304, 316 | 
| Thread Type | Metric Thread | 
| Length Range | 10mm – 300mm | 
| Diameter Range | M3 – M100 | 
| Finish/Coating | Plain, Passivated, Black Oxide | 
Technical Data Table
| Property | Value | 
|---|---|
| Tensile Strength | ≥700 N/mm² (A2-70 Stainless Steel) | 
| Yield Strength | ≥450 N/mm² | 
| Operating Temperature | -50°C to +300°C | 
| Hardness | ≤250 HB | 
| Thread Tolerance | 6g | 
Materials & Manufacturing Process
Our Hex Socket Head Cap Screws DIN912 are primarily made from high-grade A2 or A4 stainless steel ensuring excellent resistance to rust, chemical corrosion, and atmospheric exposure. The manufacturing process includes:
- High-precision cold or hot forging.
 - Heat treatment for enhanced mechanical properties.
 - CNC machining for accurate threading.
 - Surface cleaning and passivation for improved longevity.
 
These processes guarantee our screws meet strict mechanical and durability standards.
Typical Applications and Industries
Hex Socket Head Cap Screws DIN912 are widely utilized in:
- Automotive assembly
 - Aerospace components
 - Industrial machinery
 - Marine hardware
 - Renewable energy equipment
 - Electronics enclosures
 - Construction and metal frameworks
 
Wherever high-strength, clean aesthetics, and corrosion resistance are needed, Hex Socket Head Cap Screws are a top choice.
Key Benefits and Competitive Advantages
At Flybear Fastener, our screws are crafted for superior performance and reliability. Here’s why our screws stand out:
- Premium Material Selection: Made from high-quality A2 and A4 stainless steel.
 - Precision Engineering: Tight tolerance control, accurate threading, and uniform dimensions.
 - Advanced Surface Processing: Passivation treatment maximizes corrosion resistance.
 - Custom Manufacturing Capability: OEM & ODM available based on your drawing/samples.
 - Robust Supply Chain: Extensive inventory ensures timely delivery, even for bulk orders.
 - Professional Service: Technical assistance and after-sales support whenever needed.
 
Quality Control and Inspection
We implement a rigorous quality management system to uphold the highest standards. Our factory performs:
- Incoming material inspection
 - Process control at every stage
 - Full dimensional checks
 - Salt spray corrosion testing
 - Mechanical performance testing
 - Final inspection and certifications (RoHS, ISO)
 
All our fasteners are supplied with material certificates and test reports to guarantee their quality.
Selection and Purchasing Guide
Choosing the right Hex Socket Head Cap Screws involves considering thread size, length, material grade, and application load requirements. Our sales engineers can guide you to the most suitable product for your needs.
For marine or high-corrosion environments, choose A4 stainless steel. For general industrial applications, A2 is typically sufficient. Metric sizes conform to DIN912, ensuring compatibility in global systems.
Need custom sizing or coating such as black oxide or PTFE? Just send us your drawings or specifications for a free assessment.
Summary & Company Introduction
We invite you to explore our comprehensive line of fastener products for a breadth of solutions in different industrial sectors. At Flybear Fastener, we continuously aim to provide unmatched quality and support tailored to customer needs.
We proudly adhere to our motto: “Quality First, Customer-Oriented.” With professional service teams, standardized manufacturing, and advanced logistics, we offer tailored solutions for your fastening applications.
Need help choosing the right fastener or looking for a quotation? Feel free to Contact Us today!








