S-90895A200 0.087" ID x 0.157" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance through dual-side serration technology that bites into mating surfaces, preventing fastener loosening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction, extending service life in demanding industrial environments
• Reliable hardness performance with Rockwell C38 rating, maintaining spring tension and locking force through repeated use cycles
• Precision metric sizing for M2 screw applications, ensuring perfect fit and optimal load distribution
• Dual-direction locking capability with top and bottom serrations, providing secure fastening from multiple contact points
• Environmental compliance assurance meeting RoHS 3 and REACH standards, suitable for regulated industries and global supply chains
• Space-efficient design with 0.024" overall height, ideal for applications with limited clearance requirements

Professional Applications & Engineering Value

This M2 spring lock washer addresses critical vibration-induced loosening challenges in precision assemblies. The zinc-plated steel construction provides essential corrosion resistance while maintaining the spring properties necessary for consistent locking force. The innovative dual serration technology on both top and bottom surfaces creates multiple biting points that significantly enhance grip strength compared to single-sided alternatives. This design proves particularly valuable in metric fastener systems where M2 screws are commonly used in electronics, automotive components, and precision machinery. The combination of Rockwell C38 hardness and precise dimensional control ensures reliable performance in high-cycle applications where maintaining clamp load is critical to system integrity and safety.

Specification Summary & Compliance

This metric spring lock washer features precise dimensions of 0.087" ID x 0.157" OD with 0.014" thickness, engineered for M2 screw applications. Manufactured from zinc-plated steel with controlled Rockwell C38 hardness to maintain spring properties. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, meeting current regulatory requirements for industrial components. The dual serration design provides consistent locking performance across various material surfaces while maintaining dimensional stability under load conditions.