Self-locking Thread Screw
Product Overview
Self-locking thread screws are engineered fasteners designed to resist loosening under vibration and torque. These screws feature a thread design that incorporates friction-generating mechanisms, reducing the need for additional locking washers or adhesives. Flybear Fastener produces premium self-locking thread screws that ensure mechanical stability and long-term fastening performance, especially for critical applications in aerospace, automotive, electronics, and industrial assemblies.
As industries increasingly demand robust fastening technologies, self-locking thread screws have become a go-to solution due to their reliability, cost-effectiveness, and low-maintenance properties. The proprietary locking features make them highly effective in environments with dynamic loads and thermal cycling.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | Self-locking Thread Screw |
| Standard | DIN 7500 |
| Thread Type | Metric / UNC / UNF |
| Sizes Available | M2 – M10, #4 – ¾” |
| Thread Class | 6g |
| Drive Type | Phillips, Torx, Hex, Slotted |
| Head Style | Pan Head, Flat Head, Hex Head |
| Length Range | 4 mm – 100 mm |
| Coating Options | Zinc-plated, Black Oxide, Geomet, Dacromet, Nickel |
| Material | Carbon Steel, Stainless Steel (A2/A4), Alloy Steel |
| Locking Method | Interference fit, Nylon Patch, Deformed Threads |
Technical Parameters
| Property | Value Range |
|---|---|
| Proof Load | Up to 150,000 psi (depending on material) |
| Torque Resistance | Exceeds 200% standard torque (for locking zone) |
| Reusability | 3–5 cycles (nylon patch type) |
| Operating Temperature | -50°C to +300°C (depending on material and coating) |
| Vibration Resistance | High |
| Salt Spray Resistance | 500 – 1000 hours (with coating) |
Materials and Manufacturing Process
Self-locking thread screws by Flybear Fastener are manufactured using top-grade materials:
- Stainless Steel (Grades A2-70, A4-80): Excellent corrosion resistance for marine and outdoor applications.
- High-Strength Alloy Steel: Ideal for automotive and heavy-duty industrial use.
- Carbon Steel (class 8.8 / 10.9): Cost-effective yet reliable options for general applications.
Manufacturing Process Overview:
- Material Selection and Cold Heading
- Thread Rolling (using thread-forming dies)
- Locking Feature Application (e.g., spraying nylon patch, thread deformation)
- Heat Treatment (for strength)
- Surface Finishing (zinc plating, nickel coating, etc.)
- Final Inspection and Packaging
All processes are executed under strict quality protocols to assure dimensional accuracy and mechanical performance.
Typical Applications and Industries
Self-locking thread screws are commonly used across multiple industries, where safety and vibration resistance are priorities:
- Aerospace: Securing interior panels, brackets, and structures
- Automotive: Engine components, suspension systems, dashboards
- Electronics: Circuit boards, enclosures, appliance assemblies
- Renewable Energy: Turbine housings and solar panel mounts
- Medical Devices: High-reliability locking in sensitive equipment
- Industrial Machinery: Vibration-resistant fastening in production lines
Product Advantages & Competitive Edge
- Material Quality: Screws are made from premium stainless steel or high-strength alloy steel.
- Precision Manufacturing: Advanced CNC threading ensures perfect fit, reducing loosening risk.
- Superior Surface Treatment: Anti-corrosion coatings extend screw life in harsh environments.
- Customization Ready: Capable of OEM production based on drawings or requirements.
- Warehouse Stock Availability: Ready-to-ship inventory minimizes wait times.
- Technical Support & After-sales Service: Responsive team provides real-time support and guidance.
Quality Assurance and Testing
All self-locking thread screws undergo rigorous quality checks at Flybear Fastener’s in-house lab. Testing includes:
- Dimensional Analysis
- Torque & Tension Testing
- Vibration Resistance Testing
- Salt Spray Corrosion Testing
- Reusability Testing
- Coating Thickness Evaluation
Certifications available: ISO 9001, RoHS, CE compliance.
Selection and Procurement Guide
Choosing the right self-locking thread screw requires evaluating:
- Application environment (temperature, exposure to vibration)
- Required material strength
- Corrosion resistance needs
- Mounting surface material
- Assembly method (manual vs machine assembly)
Consult with our technical experts to determine the optimal screw specifications. Bulk ordering and custom design services are available for OEMs and large-scale manufacturers.
Additional Product Features
Self-locking thread screws from Flybear Fastener are compatible with automation systems and robotic assembly lines. They reduce the need for secondary locking devices, improving assembly efficiency and lowering long-term maintenance costs.
As part of our sustainability commitment, we offer lead-free and RoHS-compatible finishes, supporting clients in meeting environmental compliance standards.
Final Thoughts and Company Promotion
At Flybear Fastener , we’re proud to be a trusted industry partner in delivering reliable, precision-engineered tightening fastener products that meet today’s high-performance requirements. Our premium self-locking thread screws are just one aspect of our comprehensive solutions designed to support diverse sectors around the globe.
Whether you’re looking to reduce maintenance downtime or improve assembly reliability, our expert engineers can help tailor the right product fit for your system. We operate under the principle: “Quality First, Customer Supreme,” driving value through precision, availability, and service excellence.
To explore more fastening options or request assistance in choosing the right self-locking solution, contact us today!
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