ISO 7380-1 Socket Button Head Screw
ISO 7380-1 socket button head screw is a precision-engineered low-profile fastening solution designed for applications requiring high strength, smooth surface finish, and compact installation space. The ISO 7380-1 socket button head screw is widely used in machinery equipment, automation systems, electronics, automotive assemblies, and industrial structures where both aesthetics and mechanical performance are important.
This product is available with stainless steel head or carbon steel configurations, offering flexible performance options for corrosion resistance, strength, and cost efficiency. The ISO 7380-1 socket button head screw combines internal hex drive with a rounded button head design, ensuring stable torque transmission and reduced surface damage.

Product Overview
The ISO 7380-1 socket button head screw is designed for high-strength fastening with a smooth and aesthetic head profile. Its rounded head reduces stress concentration while providing a clean appearance after installation.
This ISO 7380-1 socket button head screw is widely used in precision assemblies where countersunk screws are not suitable but a low-profile head is still required. The internal hex drive allows high torque application, making it ideal for automated assembly systems and high-load mechanical joints.
As a versatile industrial fastener, it is commonly used in OEM manufacturing, mechanical engineering, and equipment assembly systems.

Product Specifications
| Item | Description |
|---|---|
| Standard | ISO 7380-1 |
| Product Name | ISO 7380-1 Socket Button Head Screw |
| Material Options | Carbon Steel / Stainless Steel (A2 / A4) |
| Head Type | Button Head (Round Head) |
| Drive Type | Internal Hex (Socket) |
| Thread Type | Metric Machine Thread |
| Diameter Range | M3–M20 |
| Length Range | 6mm–120mm |
| Surface Finish | Black oxide / Zinc plated / Passivated / Plain |
| Strength Grade | 4.8 / 8.8 / 10.9 / A2-70 / A4-80 |
| Thread Direction | Right Hand |
| Packaging | Carton / Box / OEM packaging |
| Customization | Material, coating, size, marking available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | 400–1000 MPa (depends on material grade) |
| Yield Strength | 320–900 MPa |
| Hardness | HV 120–320 |
| Density | Steel: 7.85 g/cm³ / Stainless: 7.93 g/cm³ |
| Corrosion Resistance | Stainless steel high / Carbon steel moderate |
| Operating Temperature | -50°C to 400°C |
| Thread Tolerance | 6g Standard |
| Manufacturing Standard | ISO 7380-1 / DIN equivalent |
Materials and Manufacturing Process
The ISO 7380-1 socket button head screw is manufactured using precision cold heading and machining processes to ensure strength and dimensional accuracy.
- Raw material selection: Carbon steel wire or stainless steel bar
- Cold heading: Formation of button head geometry
- Socket forming: Internal hex drive machining
- Thread rolling: Precision thread forming for strength
- Heat treatment (carbon steel only): Enhances mechanical properties
- Surface finishing: Zinc plating, black oxide, or passivation
- Cleaning: Oil and residue removal
- Inspection: Dimensional, torque, and hardness testing
- Packaging: Industrial export packaging
Each ISO 7380-1 socket button head screw is produced under strict quality control to ensure consistent performance.
Applications of the Product
ISO 7380-1 socket button head screws are widely used in:
- Machinery equipment: Mechanical covers and assemblies
- Automotive industry: Interior and structural components
- Electronics: Device housings and enclosures
- Automation systems: Robot and fixture assemblies
- Construction: Steel frame connections
- Industrial equipment: Machine guards and panels
- Furniture manufacturing: Modern assembly structures
- OEM production: High-volume assembly lines
Their smooth head design makes them ideal for visible or space-limited installations.
Why Choose This Product
- Low-profile button head design for smooth surfaces
- High torque internal hex drive system
- Available in stainless steel and carbon steel options
- Excellent mechanical strength and stability
- Suitable for automated assembly systems
- Wide range of size and grade options
- Corrosion-resistant stainless steel variants available
- OEM customization support
- International standard ISO 7380-1 compliance
The ISO 7380-1 socket button head screw provides a strong balance between aesthetics, strength, and functionality.
Why Choose Flybear
Flybear is a professional manufacturer specializing in high-quality industrial fasteners for global OEM and engineering markets.
- Advanced cold heading and machining capabilities
- Stable mass production for industrial supply chains
- Custom material and coating engineering support
- Strict quality inspection and testing systems
- Global export experience in fastener manufacturing
- Technical consultation for fastening solutions
Flybear supports distributors, OEM manufacturers, and industrial engineering projects with reliable fastening products.
Quality Inspection and Control
Strict quality control ensures consistent product reliability:
- Raw material chemical composition analysis
- Tensile and yield strength testing
- Hardness testing
- Socket depth and geometry inspection
- Thread gauge accuracy testing
- Surface finish and coating inspection
- Torque performance testing
- Packaging quality verification
All processes comply with ISO quality management standards.
Selection Guide
When selecting ISO 7380-1 socket button head screws, consider:
- Material type (carbon steel or stainless steel)
- Required strength grade
- Corrosion environment level
- Load and torque requirements
- Installation space constraints
- Aesthetic requirements
Proper selection ensures optimal performance and durability.
FAQ
1. What is ISO 7380-1 used for?
It is used for low-profile high-strength fastening in mechanical and industrial applications.
2. What is a button head screw?
It is a screw with a rounded head designed for smooth surface and aesthetic appearance.
3. What is the difference between carbon steel and stainless steel versions?
Carbon steel offers higher strength options; stainless steel provides better corrosion resistance.
4. Can it be used in automation equipment?
Yes, it is widely used in automated assembly systems.
5. Can custom sizes be produced?
Yes, Flybear supports full customization of size, material, and coating.
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.




