When standard fasteners fail under corrosion, vibration, or limited installation space, choosing the right solution becomes critical. Button head screws provide a low-profile fastening option with strong torque performance, smooth surface protection, and reliable assembly. However, many buyers struggle to find a supplier that can deliver consistent quality, international standards, and customized production.
Shenzhen Shenhu Fasteners Industrial provides ISO 7380 stainless steel button head screws manufactured with strict quality control. With over 40 years of fastener experience, Shenhu supports industries including automotive, electronics, medical equipment, renewable energy, and precision machinery.
Why Choose Shenhu for Button Head Screws
Your fastener supplier directly affects product reliability and production efficiency. Shenhu combines engineering experience, advanced manufacturing equipment, and certified quality systems to provide stable fastening solutions.
Shenhu’s manufacturing advantages include:
- 40+ years of fastener R&D and production experience
- IATF16949, ISO9001, and ISO45001 certified quality systems
- 100+ precision production machines
- Annual production capacity exceeding 500 million pieces
- Standard and customized fastener solutions for global industries
Through full-process quality control, Shenhu manages material selection, cold heading, thread rolling, surface treatment, inspection, and packaging to ensure consistent product performance.
ISO 7380 Stainless Steel Button Head Screws Specifications
ISO 7380 stainless steel button head screws feature a rounded head design and internal hex drive structure. This design helps reduce surface damage during installation while providing efficient torque transmission.
The screws are available with:
- Material options: SUS304 (A2-70) and SUS316 (A4-70)
- Size range: M1.6–M64
- Length range: 4mm–200mm
- Thread options: Full thread and half thread
- Thread accuracy: ISO 6g standard
- Surface treatment: Passivation or optional black passivation
For demanding environments, SUS316 stainless steel provides enhanced chloride resistance due to its Mo≥2% composition. It can withstand neutral salt spray testing of ≥100 hours, making it suitable for marine and high-humidity applications.
Stainless Steel Button Head Screws for Different Industries
Different industries require different fastening performance. Shenhu designs stainless steel button head screws for applications where durability, corrosion resistance, and precision assembly are important.
Automotive Applications
Automotive manufacturers use these screws for:
- Interior components
- Instrument panels
- Sensors
- Electronic control systems
The A2-70 and A4-70 grades provide tensile strength of ≥700MPa, supporting stable performance under vibration and temperature changes.
Electronics and Medical Equipment
For compact devices, screw head design directly affects assembly quality.
ISO 7380 screws are commonly used in:
- Industrial controllers
- Electronic housings
- Diagnostic equipment
- Precision medical devices
The smooth button head reduces scratching risks while maintaining secure fastening.
Renewable Energy and Marine Equipment
SUS316 hex socket button head screws are suitable for outdoor and marine environments where moisture and salt exposure are concerns.
Typical applications include:
- Solar equipment
- Energy storage systems
- Marine structures
- Coastal engineering equipment
ISO 7380 Screws vs Standard Screws Comparison
| Feature | ISO 7380 Button Head Screws | Standard Screws |
|---|---|---|
| Head Design | Rounded low-profile button head | Flat or traditional head design |
| Drive Type | Hex socket for high torque | Multiple drive options |
| Surface Protection | Reduces assembly scratches | Higher risk of surface damage |
| Material Options | SUS304/SUS316 stainless steel | Usually carbon steel or basic stainless steel |
| Applications | Precision machinery, electronics, marine | General fastening applications |
How Shenhu Manufactures Precision Button Head Screws
When you source custom fasteners, manufacturing consistency is essential. Shenhu follows a controlled production process:
- Material inspection
- Verify SUS304/SUS316 stainless steel quality and chemical composition.
- Cold heading production
- Form the button head structure with controlled dimensions.
- Precision thread rolling
- Manufacture metric threads according to ISO standards.
- Surface treatment
- Apply passivation processes to improve corrosion resistance.
- Quality inspection
- Check dimensions, torque performance, surface finish, and mechanical properties.
This production process helps maintain head tolerance within ±0.02mm for reliable automated and manual assembly.
Custom Stainless Steel Button Head Screws from Shenhu
Many industrial projects require more than standard sizes. Shenhu provides OEM and customized fastening solutions based on your drawings, materials, dimensions, and application requirements.
Customization options include:
- Special dimensions
- Customized thread lengths
- Different stainless steel grades
- Surface treatments
- Bulk packaging solutions
Whether you need screws for machinery, lithium battery equipment, or medical devices, Shenhu can provide engineering support from design to delivery.
FAQ
1. What are button head screws used for?
Button head screws are used in applications requiring a smooth appearance, compact installation, and reliable fastening, including electronics, automotive parts, machinery, and medical equipment.
2. What is the difference between SUS304 and SUS316 button head screws?
SUS304 is suitable for general industrial and outdoor applications, while SUS316 offers stronger corrosion resistance for marine, chemical, and high-humidity environments.
3. Can Shenhu supply customized ISO 7380 screws?
Yes. Shenhu provides OEM fastener production with customized sizes, materials, thread specifications, and packaging options according to customer requirements.
Conclusion
Choosing the right button head screws supplier helps you improve assembly reliability, reduce maintenance risks, and meet industrial quality requirements. With ISO-certified production systems, 40+ years of manufacturing experience, and advanced precision equipment, Shenzhen Shenhu Fasteners Industrial Co.,LTD delivers dependable ISO 7380 stainless steel fastening solutions for global industries.
Contact Shenhu Fasteners today to request ISO 7380 button head screw samples, technical specifications, or a customized quotation for your project.
