The DIN985 Nylon Insert Lock Nut is a high-performance fastening solution engineered to prevent loosening caused by vibration and dynamic loads. By integrating a high-quality nylon collar into the nut's body, it creates a prevailing torque that ensures a secure, locked connection, making it indispensable for critical assemblies in heavy-duty industrial environments.
Manufactured from premium carbon steel and available in a wide range of metric and imperial sizes (M5-M56), these lock nuts meet stringent global standards including DIN, ISO, and ANSI. Whether applied in automotive systems or mining machinery, our DIN985 nuts provide superior reliability, corrosion resistance, and structural integrity to ensure the safety and longevity of your projects.
Detailed Parameters
| Product Standard | DIN 985 / ISO / ANSI / BS / JIS / GB | Available Sizes | M5 to M56 (Metric & Imperial/Inch) |
|---|---|---|---|
| Material Grade | Carbon Steel: Q195, 1035, 1045, 10b21 | Hardness Class | Grade 4, 6, 8, 10, 12 |
| Heat Treatment | Tempering, Quenching, Spheroidizing Annealing | Surface Finish | Plain, Black, Zinc Plated, HDG, Dacromet |
| Hardness Range | HRC: 25-60 / HV: 450-700 (Mild Carbon Steel) | Manufacturing Process | Cold Heading, Thread Rolling, Heat Treatment |
| Certification | ISO9001, SGS, CE Certified | Supply Capacity | Up to 500 Tons Per Month |
Key Advantages
Vibration Resistance
The nylon insert provides a constant friction force that effectively prevents nuts from loosening under intense vibration.
Extended Durability
High-grade carbon steel and advanced heat treatment ensure exceptional wear resistance and long-term structural stability.
Global Compatibility
Fully compliant with DIN, ISO, and ANSI standards, ensuring seamless integration into international engineering projects.
Corrosion Protection
Various plating options including HDG and Dacromet provide superior shielding against rust and harsh environments.
Precision Engineering
Utilizing cold heading and thread rolling for tighter tolerances and higher fatigue strength than cut threads.
Custom OEM Support
Capable of producing non-standard fasteners based on specific technical drawings or physical samples.
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Management Platforms
Quality Control
Rigorous full inspection process before packaging to ensure zero-defect shipments.
Advanced Testing
Equipped with Tensile testers, Hardness testers, and Salt spray testers for validation.
Dimension Accuracy
Utilizing 3D detectors and projectors for micron-level precision checking.
Material Tracking
Full traceability of raw materials from carbon steel batches to finished product.
Flexible Packaging
Customized 5kg, 10kg, 25kg cartons or bags with palletizing for safe transit.
Logistics Efficiency
Optimized FOB, CIF, CFR, CNF, and EXW terms for global trade efficiency.
Investment Return Comparison
| Performance Metric | Standard Nuts | DIN985 Lock Nuts | Business Impact |
|---|---|---|---|
| Maintenance Cycle | Frequent Retightening | Minimal Maintenance | Lower OPEX |
| Vibration Security | Low (Prone to Loosen) | High (Self-Locking) | Enhanced Safety |
| Installation Speed | Slower (Requires Washers) | Fast (Integrated Lock) | Higher Productivity |
| Lifespan | Standard Wear | Extended Service Life | Lower Replacement Cost |
| Reliability Rate | Moderate | Industrial Grade High | Reduced Downtime |
Frequently Asked Questions
The primary difference is the nylon insert. While standard nuts rely solely on friction, the DIN985 nylon insert creates a prevailing torque that prevents the nut from rotating due to vibrations.
Yes, they can be reused, although the locking effectiveness may decrease slightly after multiple removals. For critical safety applications, replacement is recommended.
We offer a variety of high-quality carbon steels including Q195, 1035, 1045, and 10b21, tailored to meet different strength and hardness grades from 4 to 12.
For outdoor or corrosive environments, we highly recommend Hot Dip Galvanized (HDG) or Dacromet finishes, as they provide superior protection against oxidation and salt spray.
Yes, we provide comprehensive OEM services. We can manufacture non-standard fasteners according to your specific technical drawings or provided samples.
Quality is ensured through rigorous testing using Go & No-go gauges, tensile test machines, and a full inspection process before any product leaves our facility.
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