304/316 Stainless Steel Nyloc Nuts Nylon Insert Lock Nuts DIN 985 Standard Anti-Vibration Lock Nuts for Industrial & Automotive Use


Manufacturing Process
• Multi Station Cold Heading Technology
• Intelligent Heat Treatment System
• Micron-Level Thread Rolling Process
• Fully Automatic Optical Sorting
• Environmentally Friendly Surface Treatment Line
• Metallographic And Mechanical Joint Laboratory

Quality Control System
• Raw Material Source Locking
• Furnace Number Batch Full Traceability
• Third Party Material Certification
• Process Parameters Open And Transparent
• Salt Spray Test Real Time Monitoring
• International Standard Compliance Declaration

Flexible Customization Capability
• Customizable head/slot Shapes
• Extreme Application Of Special Materials
• Breakthroughs In Extra Large/Long Specifications
• Integrated Assembly Of Components
• Customizable Surface Treatment Colors
• Personalized Packaging And Labeling

Technical Service
• On-Site Failure Analysis
• Selection Calculation And BOM Optimization
• Installation Tool Selection Guidance
• Inventory Management (VMI) Trusteeship
• Free Sample Making And Testing
• International Standard Translation And Interpretation
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Multi-Material & Corrosion Resistant for Industrial & Automotive Use
Our nylon insert lock nuts are available in 304/316 stainless steel (A2-70/A4-80) and carbon steel grades 8/10, paired with temperature-resistant nylon inserts. Polished and passivated stainless steel offers natural rust protection, ideal for outdoor and marine salt spray environments. Carbon steel options with galvanized finishes provide cost-effective anti-corrosion performance. Sizes range from M2 to M36 with coarse and fine thread options, meeting diverse strength and corrosion needs for automotive chassis, industrial machinery and construction projects.
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Nylon Insert Locking Design for Superior Vibration Resistance
Manufactured to DIN 985 and ISO 7040 standards, the core design features a nylon insert that creates elastic clamping force on the bolt threads when tightened. This continuous grip effectively prevents loosening under vibration and alternating loads, ensuring reliable locking performance. The temperature-resistant nylon insert resists wear and aging, maintaining excellent anti-loosening properties even in high-vibration applications like automotive and industrial machinery for enhanced safety.
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Standard Design & Easy Installation for Versatile Bulk Assembly
With a standard hex shape, these nuts install just like regular nuts using standard wrenches or torque tools, eliminating the need for additional lock washers or thread-locking adhesives to simplify assembly. Widely applicable in automotive, machinery manufacturing, construction and general assembly, they are ideal for engineering procurement, wholesale and factory bulk supply with complete specifications and stable stock.
Application Scenarios
Industrial Capabilities
• Factory Area: 8,000 square meters
• Certifications: ISO, IATF, CE, RoHS, JIS, ASTM
• Manufacturing : 70+ internationally advanced production lines
• Testing: 30+ sets of precision quality testing equipment
• Annual Output: Up to 50,000,000 tons


From Raw Materials to Completed Items
Closed-loop manufacturing from raw materials to final products is made possible by our factory's fully automated production lines for cold heading, precision thread rolling, controlled-atmosphere heat treatment, and environmentally friendly surface finishing. Each fastener satisfies strict requirements for strength, precision, and surface quality due to inline optical sorting and a digital MES. You promise the greatest fasteners—reliable, effective, and environmentally responsible.
Lab for Innovation:
Do you have any ongoing projects? Now let's go on. Our development is driven by skill and effort, and we are constantly searching for fresh ideas. Are you working on a project? Now let's go on.
"Customized Implementation" to "Pain Point Diagnosis" in the Whole Joint R&D Process
We offer more than just conventional components. Our multicultural engineering staff actively participates in your project from the start. To ensure that creative concepts are swiftly turned into workable solutions that reduce overall lifespan costs, we thoroughly analyze the application context and tailor solutions in the lab, fully integrating technology and application.


Integrated Verification System: Ensuring Innovation with "Test Data"
The drawing board is not where the creative process ends. Through our internal technical center, we provide one-stop verification for anything from corrosion testing to prototype creation. Through extensive simulated working condition tests, we use empirical data to confirm the performance stability of tailored solutions. This significantly reduces project risks while also attaining truly reliable cost reduction and efficiency improvement.

























