DIN912 Alloy Steel Nickel Plated Socket Head Cap Screw
DIN912 alloy steel nickel plated socket head cap screw is a high-strength precision fastening component designed for applications requiring excellent mechanical performance, corrosion resistance, and compact installation space. The DIN912 alloy steel nickel plated socket head cap screw is widely used in machinery equipment, automotive systems, automation equipment, mold tooling, and industrial engineering assemblies where high torque transmission and reliable fastening are required.
With its internal hex drive and cylindrical head design, the DIN912 alloy steel nickel plated socket head cap screw ensures stable tightening performance, reduced stripping risk, and strong structural integrity under load.

Product Overview
The DIN912 alloy steel nickel plated socket head cap screw is manufactured according to international DIN912 standards, ensuring dimensional accuracy and compatibility with global industrial systems. Alloy steel provides high strength, while nickel plating enhances corrosion resistance and surface durability.
This DIN912 alloy steel nickel plated socket head cap screw is especially suitable for precision machinery and high-load mechanical structures where space is limited but fastening strength is critical.
As a widely used industrial fastener, it plays a key role in mechanical design, equipment manufacturing, and OEM production systems.
Product Specifications
| Item | Description |
|---|---|
| Standard | DIN912 |
| Product Name | Alloy Steel Nickel Plated Socket Head Cap Screw |
| Material | Alloy Steel |
| Surface Finish | Nickel Plated |
| Head Type | Cylindrical Socket Head |
| Drive Type | Internal Hex (Allen) |
| Thread Type | Metric Machine Thread |
| Size Range | M3–M36 |
| Length Range | 6mm–200mm |
| Strength Grade | 8.8 / 10.9 / 12.9 |
| Corrosion Resistance | Medium to High (nickel plated) |
| Thread Direction | Right Hand |
| Packaging | Carton / box / OEM packaging |
| Customization | Size, coating thickness, marking available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | 800–1200 MPa (depending on grade) |
| Yield Strength | 640–1080 MPa |
| Hardness | HV 250–420 |
| Density | 7.85 g/cm³ |
| Corrosion Resistance | Improved with nickel coating |
| Operating Temperature | -40°C to 300°C |
| Thread Tolerance | 6g Standard |
| Manufacturing Standard | DIN912 / ISO 4762 equivalent |
Materials and Manufacturing Process
The DIN912 alloy steel nickel plated socket head cap screw is manufactured using precision cold heading and surface finishing processes to ensure high strength and durability.
- Raw material selection: Alloy steel wire rod
- Cold heading: Formation of cylindrical head
- Socket forming: Internal hex drive machining
- Thread rolling: High-strength precision thread forming
- Heat treatment: Strength grade enhancement (8.8 / 10.9 / 12.9)
- Surface preparation: Cleaning and degreasing
- Nickel plating: Electroplated corrosion-resistant coating
- Inspection: Dimensional and torque testing
- Packaging: Protective export packaging
Each DIN912 alloy steel nickel plated socket head cap screw is produced under strict quality control standards.
Applications of the Product
DIN912 nickel plated socket head cap screws are widely used in:
- Machinery equipment: High-strength mechanical assemblies
- Automotive industry: Engine and chassis components
- Mold tooling: Precision fixture and die systems
- Automation equipment: Robotic and mechanical systems
- Industrial machinery: Structural fastening systems
- Electronics equipment: Compact device assemblies
- Construction machinery: Heavy-duty structural connections
- OEM manufacturing: High-volume industrial production
Their internal hex design makes them ideal for tight installation spaces.
Why Choose This Product
- High-strength alloy steel construction
- DIN912 standard ensures global compatibility
- Nickel plating improves corrosion resistance
- Internal hex drive allows high torque application
- Suitable for high-load mechanical systems
- Stable performance under vibration conditions
- Multiple strength grades available (8.8 / 10.9 / 12.9)
- OEM customization support available
- Widely used industrial standard fastener
The DIN912 alloy steel nickel plated socket head cap screw ensures reliable performance in demanding engineering applications.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and precision mechanical components.
- Advanced cold heading and heat treatment production lines
- Alloy steel fastening expertise
- Nickel plating and surface treatment capability
- OEM customization for industrial applications
- Strict quality inspection and testing systems
- Global export experience in fastener manufacturing
Flybear provides reliable fastening solutions for machinery, automotive, mold, and industrial sectors.
Quality Inspection and Control
Strict quality control ensures consistent product performance:
- Raw material chemical composition testing
- Tensile and yield strength testing
- Hardness testing
- Socket depth and geometry inspection
- Thread gauge verification
- Coating thickness inspection
- Torque performance testing
- Packaging integrity inspection
All production follows ISO quality management standards.
Selection Guide
When selecting DIN912 alloy steel nickel plated socket head cap screws, consider:
- Strength grade (8.8 / 10.9 / 12.9)
- Load and torque requirements
- Corrosion environment level
- Size and thread specification
- Installation space limitations
- Surface treatment requirements
Proper selection ensures optimal performance and durability.
FAQ
1. What is DIN912?
It is a standard for socket head cap screws with internal hex drive.
2. Why use nickel plating?
It improves corrosion resistance and surface hardness.
3. What strength grades are available?
Common grades include 8.8, 10.9, and 12.9.
4. Can it be used in machinery?
Yes, it is widely used in industrial machinery systems.
5. Can custom sizes be produced?
Yes, Flybear supports full customization.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.




