Double Stack Self-Locking Washers | Anti-Loose, Vibration-Resistant |Weforging

# Double Stack Self-locking Gasket Product Details Description – Professional anti-loosening solution

## Product Overview
The double-layer self-locking washer is a high-performance anti-loosening fastener. It adopts a unique double-layer superimposed design and generates continuous locking force through elastic deformation, effectively preventing the loosening and detachment of bolts and nuts under vibration and shock environments. This product complies with international standards (DIN/ISO) and is widely used in fields with strict requirements for fastening safety, such as automotive manufacturing, rail transit, construction machinery, and power equipment.

Core advantage
? ** Double Locking Mechanism ** : The upper and lower layers of sawtooth teeth interlock alternately, generating bidirectional locking forces in both radial and axial directions
? ** Anti-vibration performance ** : Passed the ISO16130 vibration test and can withstand more than 10,000 high-frequency vibrations without loosening
? ** Reusability ** : The special heat treatment process ensures that the gasket maintains a locking force of over 80% after 3 to 5 disassemblies
? ** Full material Selection ** : We offer a variety of materials including 304/316 stainless steel, grade 8 /10 alloy steel, copper-nickel alloy, etc

Technical parameters
| Specification | Inner Diameter range | Outer diameter Range | Thickness | Applicable Temperature | Surface Treatment |
|——-|———-|———-|——|———-|———-|
M2 – M28 | | | 4 to 28 mm 8-50 mm 1.2 3 mm | | – 60 ?? ~ + 300 ?? | | galvanized/dacromet/passivating

Application scenarios
Youdaoplaceholder0 ENGINE KEY parts fastening
Youdaoplaceholder0 Wind turbine connectors
Youdaoplaceholder0 Fastener system for high-speed rail track
Youdaoplaceholder0 Drive parts of heavy machinery
Youdaoplaceholder0 Chemical pipe flange connection

Quality certification
Youdaoplaceholder0 ISO 898-1:2013 Mechanical properties certification
Youdaoplaceholder0 DIN 25201-4 Standard for Railway applications
Youdaoplaceholder0 Compliance with the RoHS 2.0 Directive
Youdaoplaceholder0 SGS material inspection report

## Purchasing Guide
1. Select the corresponding specification based on the nominal diameter of the bolt
2. It is recommended to choose stainless steel for humid environments
3. Special heat treatment models are required for high-temperature working conditions
4. For extremely strong vibration environments, it is recommended to pair it with a nylon coating

Service commitment
? 40 years of professional fastener manufacturing experience
? Support free sample testing
? provides technical solution design
? Quick proofin