S-97099A103 4.3 mm ID x 8 mm OD DIN 137A Heavy-Vibration-Resistant Spring Lock Washers
Heavy-Vibration-Resistant Spring 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 through the curved spring design, ensuring long-term joint integrity in dynamic applications
- Excellent corrosion resistance with 18-8 stainless steel construction, ideal for harsh or humid industrial environments
- Precise dimensional fit with 4.3mm ID and 8mm OD, providing reliable compatibility with M4 screws and consistent performance
- Standardized quality assurance per DIN 137A specifications, guaranteeing interchangeability and engineering reliability
- Enhanced safety compliance with RoHS 3 and REACH regulations, meeting strict environmental and health standards for global supply chains
- Optimized load distribution from the 0.5mm thickness and curved shape, reducing stress concentration on fastened components
- Durable material properties of 18-8 stainless steel offering good tensile strength and fatigue resistance for repeated use
Professional Applications & Engineering Value
This M4 spring lock washer delivers critical vibration resistance in machinery, automotive assemblies, and electrical enclosures where loosening under dynamic loads poses operational risks. The 18-8 stainless steel material inherently resists oxidation and chemical exposure, making it suitable for food processing, marine, or outdoor equipment without additional coatings. Its curved spring design maintains constant tension, compensating for thermal expansion and material relaxation in bolted joints. By adhering to DIN 137A standards, this metric lock washer ensures precise thread engagement and reliable locking performance in high-cycle applications, reducing maintenance downtime and enhancing assembly safety.
Specification Summary & Compliance
Manufactured to DIN 137A dimensional and performance standards with metric measurements (4.3mm ID, 8mm OD, 0.5mm thickness, 1.6mm overall height). The washer meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for hazardous substance restrictions, ensuring environmental safety and regulatory acceptance in industrial markets. Material certification for 18-8 stainless steel confirms corrosion resistance and mechanical properties suitable for demanding fastener applications.
