304/316 Stainless Steel Split Lock Washers Spring Lock Washers DIN 127 Anti-Vibration for Screw Bolt Fastening
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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Rust-proof & Corrosion-resistant Stainless Steel Material
Common carbon steel lock washers rust easily in humid, acidic, or outdoor environments, causing loss of locking function. Our AISI 304/316 stainless steel (grade A2/A4) contains high chromium content, forming a dense passivation film on the surface that completely isolates oxygen and moisture. Even after long-term exposure to marine climates, chemical environments, or rain, it remains bright and free from red rust or pitting. This means your fastening system requires no frequent washer replacement, making it ideal for harsh conditions such as marine, food equipment, and outdoor construction.
01
Long Service Life with High Wear Resistance
The passivated stainless steel split washer has high surface hardness with no plating peeling issues; zinc-plated carbon steel versions also have a protective layer. During repeated assembly and disassembly with bolts and nuts, the washer contact surfaces resist wear, galling, or deformation. The elastic split structure has passed fatigue tests, enduring hundreds of thousands of compression-recovery cycles without permanent deformation. Therefore, in applications requiring regular maintenance or subject to high vibration (e.g., automotive chassis, construction machinery), this product maintains its anti-loosening performance over the long term, greatly reducing replacement frequency and maintenance costs.
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Metal Material for Tightening & Anti-Loosening
The core function of a split lock washer is to generate continuous clamping force through elastic deformation. 65Mn spring steel offers high elastic limit after heat treatment, while 304/316 stainless steel also provides excellent tensile strength (≥500MPa). When the nut is tightened, the split washer is flattened, storing elastic energy that pushes back against the nut, increasing the friction torque between threads and effectively resisting loosening caused by vibration and impact. Unlike nylon or rubber locking devices, metal lock washers do not age or become brittle, maintaining stable clamping force from -40°C to high temperatures.
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 completed items is made possible by our factory's fully automated production lines for cold heading, precision thread rolling, controlled-atmosphere heat treatment, and eco-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:
Are you currently engaged in any projects? Now let's go on. Talent and hard effort drive our development, and we are constantly searching for fresh ideas. Do you have a project underway? 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 from the start of your project. To ensure that creative concepts are swiftly converted into workable solutions that save total lifecycle costs, we thoroughly examine the application context and customize solutions in the lab, fully integrating technology and application.
Integrated Verification System: Assuring Innovation with "Test Data"
The drawing board is not the end of the creative process. Through our internal technical center, we provide one-stop verification for anything from corrosion testing to prototype creation. Through thorough simulated working condition tests, we use empirical data to confirm the performance stability of tailored solutions. This significantly reduces project risks in addition to attaining truly reliable cost reduction and efficiency improvement.
