The DIN985 Nylon Insert Lock Nut is a high-performance fastening solution engineered to prevent loosening under conditions of vibration and dynamic loads. By integrating a high-quality nylon collar into the precision-threaded carbon steel body, these lock nuts provide a reliable prevailing torque that ensures joint integrity in the most demanding industrial environments.
Manufactured to rigorous international standards including DIN, ISO, and ANSI/ASTM, our lock nuts offer exceptional versatility with a size range from M5 to M56. Whether for heavy industry, automotive assembly, or mining equipment, these fasteners combine superior mechanical strength with advanced surface treatments to deliver long-term durability and corrosion resistance.
Detailed Parameters
| Product Standard | DIN985, GB, ISO, ANSI/ASTM, BS, BSW, JIS | Size Range | M5 - M56 (Metric & Imperial/Inch) |
|---|---|---|---|
| Material Grade | Carbon Steel: Q195, 1035, 1045, 10B21 | Strength Class | Grade 4, 6, 8, 10, 12 |
| Heat Treatment | Tempering, Quenching, Spheroidizing, Annealing | Hardness Range | Mild Carbon Steel: HRC 25-60, HV 450-700 |
| Surface Finish | Plain, Black, Zinc Plated, HDG, Dacromet | Production Process | Cold Heading, Thread Rolling, Heat Treatment |
| Certifications | ISO9001, SGS, CE | Supply Capacity | 500 Tons Per Month |
Key Advantages
Vibration Resistance
The nylon insert creates a friction lock that prevents the nut from loosening during high-frequency mechanical vibrations.
Extended Lifecycle
Precision thread rolling and advanced heat treatment ensure wear resistance and a longer service life in heavy-duty use.
Global Standardization
Fully compliant with DIN and ISO standards, ensuring 100% compatibility with international engineering projects.
Customizable OEM
Support for non-standard specifications based on professional technical drawings or physical samples.
Strict QC Inspection
Rigorous testing using 3D detectors, salt spray testers, and Go&No-go gauges for zero-defect shipping.
Versatile Coatings
Options like Dacromet and HDG provide superior protection against oxidation in corrosive environments.
Product Gallery
Management Platforms
Material Traceability
Full tracking of raw carbon steel batches from Q195 to 10B21 for quality assurance.
Precision Tooling
Advanced cold heading and thread rolling machines for tight dimensional tolerances.
Quality Monitoring
Real-time inspection using tensile test machines and hardness testers.
Certification Compliance
Adherence to ISO9001, CE, and SGS standards for global market entry.
Logistics Optimization
Flexible packaging (5-25kg) and worldwide shipping terms (FOB, CIF, EXW).
Custom Engineering
Dedicated technical support for OEM drawings and specialized fastener samples.
Investment Return Comparison
| Feature | Standard Nut | DIN985 Nylon Lock Nut | Industrial Impact |
|---|---|---|---|
| Vibration Stability | Low/Poor | Excellent | Reduced Downtime |
| Maintenance Cost | High (Frequent Retightening) | Very Low | Lower OPEX |
| Security Level | Basic | High-Security | Enhanced Safety |
| Installation Speed | Standard | Fast & Reliable | Increased Efficiency |
| Corrosion Life | Variable | Extended (with HDG/Zinc) | Longer Asset Life |
Frequently Asked Questions
The DIN985 nut features a nylon insert that provides prevailing torque, preventing the nut from backing off due to vibration, whereas a standard nut relies solely on tension.
We offer various surface treatments including Zinc plated, Hot Dip Galvanized (HDG), and Dacromet to provide high-level protection against rust and oxidation.
Yes, we provide professional OEM services. We can manufacture custom fasteners according to your specific drawings or physical samples to meet unique project requirements.
Our QC lab is equipped with Calipers, Go&No-go gauges, Tensile test machines, Hardness testers, Salt spraying testers, and 3D detectors to ensure total precision.
They are widely used in Heavy Industry, Mining, Automotive assembly, and General Industrial machinery where constant vibration is present.
We have a robust production capacity capable of supplying up to 500 tons of high-quality fasteners per month.
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