Stainless Steel Self-Locking Counter Nuts DIN7967
Self-Locking Counter Nuts DIN7967 play a crucial role in applications that demand high vibration resistance and secure fastening without loosening. These nuts are engineered with precision to meet stringent international standards and are increasingly used across multiple industries for high-performance fastening systems. At Flybear Fastener, we manufacture premium-grade self-locking counter nuts that ensure stability and reliability under demanding conditions.
Product Overview
Self-locking counter nuts designed based on DIN7967 standards serve as effective locking devices for nuts and bolts assemblies exposed to dynamic loads. They are typically used in conjunction with standard hex nuts to prevent accidental loosening due to vibrations or torque reversal. These nuts are made from high-grade stainless steel for durability, corrosion resistance, and long-lasting performance.
Unlike standard nuts, the Self-Locking Counter Nut features a unique profile that increases frictional resistance, allowing the fastener to stay in place even under high levels of mechanical stress. The design offers reliability without the need for additional locking elements such as washers or adhesives.
Product Specifications Table
| Specification | Details |
|---|---|
| Product Standard | DIN7967 |
| Type | Self-Locking Counter Nut |
| Material | Stainless Steel (A2, A4 grades) |
| Size Range | M4 to M52 |
| Thread Type | Metric ISO threads |
| Surface Finish | Plain / Passivated |
| Temperature Range | -50°C to +300°C |
| Compliance | RoHS, REACH, ISO 9001 |
Technical Parameters
| Parameter | Value |
|---|---|
| Thread Pitch Tolerance | ISO 6H |
| Hardness | HV160 – HV250 |
| Locking Mechanism | Friction-based deformation |
| Yield Strength | ≥520 MPa |
| Tensile Strength | ≥700 MPa |
| Salt Spray Resistance | >500 hours (A4 stainless) |
Material & Manufacturing Process
Our Self-Locking Counter Nuts DIN7967 are produced using premium stainless steel materials, primarily A2 (304) and A4 (316), which offer excellent resistance against corrosion and chemical exposure. These materials are carefully selected to ensure consistency in mechanical strength and longevity.
The manufacturing process involves:
- Cold forging for dimensional stability
- Precision threading under tight tolerances
- Surface cleaning and passivation for corrosion resistance
- 100% visual and dimensional inspection
- Packaging under cleanroom environments
Our automation and quality-controlled processes ensure that each batch meets international benchmarks and performs reliably under mechanical variations.
Typical Applications and Industry Use
These nuts are widely used in industries such as:
- Automotive and Transportation (Engine mounts, suspension systems)
- Construction and Civil Engineering (Steel structures, high-vibration assemblies)
- Renewable Energy (Wind turbines, solar panel frames)
- Rail and Metro Systems
- Aerospace and Defense
- Marine and Offshore applications
Wherever consistent, secure fastening is required that must endure stress, pressure, and vibrations, Self-Locking Counter Nuts DIN7967 provide dependable performance.
Product Advantages and Competitive Edge
Flybear Fastener proudly delivers not only premium-grade products but also unmatched engineering support:
Precision Manufacturing
- Tight thread tolerances ensure zero back-off under torque load
- Reliable performance in both static and dynamic loads
Advanced Surface Treatment
- Passivated option enhances corrosion resistance, suitable for marine environments
Material Superiority
- Made from certified stainless steel (A2 & A4), offering high durability
Adaptability and Customization
- We can create customized items as per your drawing or sample specifications
Fast Delivery
- With an in-house warehouse of extensive stock, we support next-day delivery
Exceptional After-Sales Support
- Full technical consultation, usage guidance, and troubleshooting included
Quality Control & Inspection
Our products go through a rigorous quality assurance process:
- 100% dimensional inspection
- Thread inspection gauge test
- Salt spray test (as per ISO 9227)
- Material composition analysis
- Torque resistance test on a sampling plan
- IATF 16949 compliant production lines
Each Self-Locking Counter Nut DIN7967 batch is traceable through production batch coding ensuring full quality transparency.
Selection & Procurement Guide
When selecting self-locking counter nuts, consider the following:
- Thread size compatibility with mating bolt/nut
- Load condition (static vs dynamic)
- Exposure conditions (e.g., moisture, chemicals)
- Frequency of assembly/disassembly
- Temperature range of application
For bulk procurement, please consult our engineering team. We offer OEM/ODM services, and our technical crew is ready to advise the best use cases and deployment options.
Conclusion & Company Promotion
At Flybear Fastener, we offer industry-leading fastener products and scalable solutions for modern engineering challenges. We consistently innovate to provide dependable fastening components that highlight precision, longevity, and versatility.
We always uphold the philosophy of “quality first, customer foremost,” and are committed to providing our customers with top-quality fastener products and one-stop solutions. Please do not hesitate to contact us to receive tailored industry solutions and a competitive quote. Explore our product catalog today for more details and technical guidance.
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