Carburized Steel Black Zinc Torx Pan Head Self Tapping Screw GB2670
Carburized steel black zinc Torx pan head self tapping screw GB2670 is a high-performance fastening component designed for sheet metal, machinery, and industrial assembly applications requiring strong thread forming capability and reliable surface protection. The carburized steel black zinc Torx pan head self tapping screw GB2670 is manufactured from carburized carbon steel with a black zinc coating, providing enhanced surface hardness, wear resistance, and corrosion protection.
The carburized steel black zinc Torx pan head self tapping screw GB2670 features a Torx drive recess, pan head design, and flat tail point structure, allowing efficient installation and stable fastening performance without pre-threaded holes in many applications.

Product Overview
The carburized steel black zinc Torx pan head self tapping screw GB2670 is a precision self tapping fastener manufactured according to GB2670 requirements. It is designed to create its own threads when installed into suitable materials such as steel sheets, plastic components, and thin metal structures.
The carburizing treatment increases the surface hardness of the screw while maintaining a tough core, improving resistance against wear and installation stress. The black zinc coating enhances appearance and provides additional protection against oxidation.
The Torx drive design improves torque transmission compared with traditional cross recess screws. The carburized steel black zinc Torx pan head self tapping screw GB2670 is widely selected for applications requiring strong driving performance, accurate installation, and long-term fastening reliability.
Product Specifications
| Item | Description |
|---|---|
| Product Name | Carburized Steel Black Zinc Torx Pan Head Self Tapping Screw |
| Standard | GB2670 |
| Material | Carburized Carbon Steel |
| Screw Type | Self Tapping Screw |
| Head Type | Pan Head |
| Drive Type | Torx / Six-Lobe Drive |
| Point Type | Flat Tail |
| Surface Finish | Black Zinc Plated |
| Thread Type | Tapping Thread |
| Size Range | According to GB2670 Standard |
| Thread Direction | Right Hand |
| Packaging | Bulk / Box / OEM Packaging |
| Customization | Size, material, coating available |
Technical Parameters
| Parameter | Value |
|---|---|
| Material | Carburized Carbon Steel |
| Heat Treatment | Carburizing Treatment |
| Surface Hardness | High Hardness Layer |
| Core Performance | Tough Core Structure |
| Tensile Strength | According to Specification |
| Wear Resistance | Excellent |
| Corrosion Resistance | Improved by Black Zinc Coating |
| Drive Performance | High Torque Transmission |
| Manufacturing Standard | GB2670 |
Materials and Manufacturing Process
The carburized steel black zinc Torx pan head self tapping screw GB2670 is manufactured through controlled forming, heat treatment, threading, and surface finishing processes.
- Raw material selection: High-quality carbon steel wire
- Material inspection: Chemical composition verification
- Cold heading: Forms the pan head screw structure
- Torx recess forming: Precision six-lobe drive production
- Thread rolling: Creates accurate tapping threads
- Carburizing treatment: Increases surface hardness and wear resistance
- Surface finishing: Black zinc plating for improved corrosion protection
- Cleaning process: Removes processing residues
- Inspection: Thread inspection, hardness testing, dimensional inspection, drive inspection, and coating inspection
- Packaging: Protective industrial packaging for transportation
Each carburized steel black zinc Torx pan head self tapping screw GB2670 is produced under strict quality control to ensure consistent fastening performance.
Applications of the Product
The carburized steel black zinc Torx pan head self tapping screw GB2670 is widely used in industries requiring efficient thread forming fastening:
- Automotive industry: Interior components and metal assemblies
- Machinery manufacturing: Equipment covers and structural parts
- Electrical equipment: Cabinets, housings, and control panels
- Electronics industry: Product enclosures and precision assemblies
- Sheet metal fabrication: Thin plate fastening
- Industrial automation: Equipment installation systems
- Furniture manufacturing: Metal structure connections
- OEM products: Customized assembly applications
Its high surface hardness and Torx drive structure make it suitable for repeated industrial assembly operations.
Why Choose This Product
- Carburized steel provides high surface hardness
- Black zinc coating improves corrosion protection
- Torx drive supports higher installation torque
- Flat tail design provides stable fastening
- Excellent wear resistance
- Reliable self tapping performance
- Suitable for automated assembly
- OEM customization support
The carburized steel black zinc Torx pan head self tapping screw GB2670 provides an efficient fastening solution for industrial manufacturing applications.
Why Choose Flybear
Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.
- Experience with self tapping screw manufacturing
- Support for GB standard fastener production
- Advanced cold heading and thread rolling capability
- Professional heat treatment management
- Stable black zinc surface finishing process
- OEM/ODM customization support
- Global supply experience
- Engineering support for customized fastening requirements
Flybear provides reliable fastening products for automotive, electronics, machinery, and industrial customers worldwide.
Quality Inspection and Control
Quality assurance is maintained throughout production:
- Carbon steel chemical composition analysis
- Raw material certificate verification
- Carburizing depth inspection
- Surface hardness testing
- Thread gauge inspection
- Torx drive dimensional inspection
- Dimensional accuracy inspection
- Black zinc coating inspection
- Packaging inspection
All manufacturing processes follow ISO quality management system requirements to ensure consistent product reliability.
Selection Guide
When selecting a carburized steel black zinc Torx pan head self tapping screw GB2670, consider:
- Base material type
- Required thread forming performance
- Screw diameter and length
- Installation torque requirements
- Operating environment
- Corrosion protection requirements
Correct selection ensures reliable fastening performance and extended service life.
FAQ
1. What is a GB2670 self tapping screw used for?
GB2670 self tapping screws are used for fastening applications where the screw forms its own thread during installation.
2. What is the advantage of carburized steel screws?
Carburized steel provides a hard wear-resistant surface with a strong internal core for improved durability.
3. Why use a Torx drive on self tapping screws?
Torx drive provides better torque transfer and reduces slipping during installation.
4. Can black zinc self tapping screws be customized?
Yes, Flybear supports customized sizes, materials, coatings, and packaging.
5. Where are GB2670 Torx self tapping screws commonly used?
They are widely used in automotive, electronics, machinery, sheet metal, and industrial assembly applications.
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.




