S-97471A129 21 mm ID x 42 mm OD DIN 432 Tab Lock Washers
Tab Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance with tab lock design prevents fastener loosening in high-stress applications
- Exceptional corrosion resistance provided by 316 stainless steel construction for harsh environments
- Precise dimensional compatibility with M20 screws ensures perfect fit and reliable performance
- DIN 432 certification guarantees consistent quality and engineering standards compliance
- Environmental compliance with RoHS 3 and REACH regulations for safe industrial use
- Optimized dimensions (21mm ID, 42mm OD, 1.6mm thickness) provide ideal load distribution
- Durable mechanical properties maintain performance under repeated stress and vibration
Professional Applications & Engineering Value
This M20 tab lock washer delivers critical engineering solutions where vibration-induced fastener failure poses significant risks. The 316 stainless steel construction provides exceptional resistance to corrosive environments including chemical processing, marine applications, and outdoor installations. The DIN 432 compliant tab lock mechanism creates positive locking action that prevents rotational loosening in machinery, automotive assemblies, and structural frameworks. With precise metric dimensions (21mm internal diameter, 42mm outer diameter) and 1.6mm thickness, this washer maintains consistent clamping force while distributing load effectively. The combination of vibration-resistant design and corrosion-proof material makes it ideal for industrial equipment, transportation systems, and infrastructure projects requiring reliable, long-term fastening security.
Specification Summary & Compliance
This tab lock washer features precision metric dimensions with 21mm internal diameter, 42mm outer diameter, and 1.6mm thickness, engineered to DIN 432 standards for dimensional accuracy and performance reliability. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory compliance for industrial applications worldwide. Designed specifically for M20 screw sizes, this washer maintains consistent mechanical properties and dimensional stability across production batches.
