S-95221A131 21 mm ID x 45 mm OD DIN 6796 Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through conical spring design that maintains constant tension under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh environments
• Precise dimensional compatibility with 21mm ID specifically engineered for M20 screw applications
• Reliable spring action with 45mm OD and 5mm thickness providing optimal deflection and recovery
• Industry-standard compliance with DIN 6796 specification ensuring consistent performance and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance for sustainable manufacturing practices
• Optimized load distribution with conical shape that prevents loosening under thermal cycling and vibration

Professional Applications & Engineering Value

This M20 spring lock washer delivers critical vibration-resistant fastening solutions for demanding industrial applications. The conical spring washer design creates continuous axial tension that compensates for material relaxation and thermal expansion, making it ideal for machinery, automotive assemblies, and heavy equipment where vibration-induced loosening poses significant safety risks. Manufactured from zinc-plated steel, it provides essential corrosion resistance while maintaining the spring properties necessary for reliable performance. The DIN 6796 certification ensures dimensional precision and mechanical consistency, allowing engineers to specify this metric lock washer with confidence across European and international projects requiring standardized components.

Specification Summary & Compliance

This spring lock washer features precise metric dimensions with 21mm inner diameter, 45mm outer diameter, and 5.0mm thickness, specifically designed for M20 screw applications. Manufactured in compliance with DIN 6796 standards for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance requirements and is REACH (EC 1907/2006) compliant with current SVHC declarations as of January 17, 2023. The zinc-plated steel construction provides both corrosion protection and maintained spring characteristics essential for vibration-resistant fastening systems.