Product Details
Our DIN 912 Stainless Steel Hex Socket Head Cap Bolts are defined by their superior material composition and precision design. The tall, cylindrical head is specifically designed to fit into counterbored holes, creating a strong, flush, or near-flush assembly that is protected from external damage. The internal hex socket (Allen) drive provides a secure, six-point contact surface, enabling high levels of torque to be applied for maximum clamping force while minimizing the risk of tool slippage. We offer these bolts in two primary stainless steel variants to suit specific environmental challenges: A2 (Type 304) Stainless Steel, which is the industry standard for excellent corrosion resistance in freshwater and general atmospheric conditions, and A4 (Type 316) Stainless Steel, which contains molybdenum for superior protection against chlorides, acids, and saltwater, making it essential for marine and chemical applications. The bolts feature a plain, passive finish, which is the natural surface of the stainless steel, providing a clean, bright look and integral corrosion protection that will not chip, flake, or peel.
Product Parameters
The technical specifications for our DIN 912 Stainless Steel Hex Socket Head Cap Bolts are detailed below to ensure a perfect match for your project needs.
| Parameter | Specification |
|---|
| Product Name | DIN 912 Stainless Steel Hex Socket Head Cap Bolts |
| Standard | DIN 912 |
| Material | Stainless Steel (SS304/A2, SS316/A4) |
| Grade | A2-70, A4-70, A4-80 |
| Surface Treatment | Plain / Self-Colour |
| Head Style | Cylindrical Head |
| Drive Style | Internal Hex Socket (Allen) |
| Diameter Range | M4 – M24 |
| Brand Name | Duojia |
| Place of Origin | Hebei, China |
| Key Feature | Intrinsic corrosion resistance, hygienic, ideal for harsh environments |
| Application | Marine, Food & Beverage, Medical, Chemical, Heavy & General Industry |
Product Features
Engineered for ultimate reliability, our DIN 912 Stainless Steel bolts offer a range of compelling features that set them apart.
- Inherent and Uncompromising Corrosion Resistance: Unlike coated fasteners, the corrosion protection is built into the alloy itself. The chromium oxide passive layer self-repairs when scratched, guaranteeing lifelong resistance to rust and oxidation, with A4 grade offering elite protection in saline and acidic conditions.
- Hygienic and Non-Porous Surface: The smooth, crevice-free surface of stainless steel is easy to clean and sterilize, preventing bacterial growth. This makes it the mandatory choice for equipment used in food processing, pharmaceutical production, and medical device assembly.
- Exceptional Strength and Durability: Available in high-tensile grades like A2-70 and A4-80, these bolts provide robust clamping force and structural integrity, ensuring joints remain secure even under significant stress and vibration.
- Wide Temperature Tolerance: Stainless steel maintains its mechanical properties across a broad spectrum of temperatures, from cryogenic applications to elevated heat environments, without becoming brittle or losing strength.
- Clean and Professional Aesthetic: The bright, metallic finish of stainless steel provides a modern, high-quality appearance that lasts the lifetime of the product, enhancing the value and look of any assembly without requiring paint or plating.
Product Applications
The superior properties of our DIN 912 Stainless Steel Hex Socket Head Cap Bolts make them indispensable across a wide range of critical industries. In the marine industry, A4 (316) grade bolts are essential for boat building, rigging, and dock hardware, where they withstand constant exposure to saltwater. The food and beverage sector relies on A2 (304) and A4 (316) bolts for assembling processing machinery, conveyors, and storage tanks, ensuring compliance with strict hygiene standards. For medical and pharmaceutical applications, their sterile nature is vital for constructing surgical instruments, laboratory equipment, and cleanroom facilities. They are also heavily used in chemical processing plants for fastening pipes, valves, and reactors exposed to corrosive substances. Furthermore, their aesthetic appeal and weather resistance make them a popular choice for high-end architectural projects, outdoor furniture, and water treatment facilities.
