S-93501A003 0.106" ID x 0.189" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance from dual-sided serrations that bite into mating surfaces, preventing fastener loosening in high-stress environments
• Exceptional durability with Rockwell C40 hardened steel construction that maintains locking force through repeated loading cycles
• Precision metric sizing with 0.106" ID and 0.189" OD ensures perfect compatibility with M2.5 fasteners in international projects
• Bidirectional locking action from top and bottom serrations provides reliable performance regardless of installation orientation
• Regulatory compliance assurance with RoHS 3 and REACH standards eliminates supply chain barriers for global manufacturing
• Consistent spring tension maintained through controlled 0.018" thickness and 0.035" overall height for predictable clamping force
• Reduced maintenance requirements through reliable locking performance that extends service intervals in vibrating equipment

Professional Applications & Engineering Value

This M2.5 metric spring lock washer delivers critical vibration resistance in demanding applications where fastener security is paramount. The dual-sided serrated design creates multiple biting edges that dig into both the fastener head and mounting surface, effectively resisting rotational forces that cause conventional washers to fail. Manufactured from hardened steel with Rockwell C40 hardness, these washers maintain their spring characteristics and locking force even under extreme cyclic loading conditions. Ideal for precision machinery, automotive assemblies, and electronic enclosures, the top and bottom serration pattern ensures reliable performance regardless of installation orientation, while the precise metric dimensions guarantee perfect fit with M2.5 fasteners in international engineering projects requiring consistent, predictable locking performance.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.106" internal diameter, 0.189" outer diameter, 0.018" thickness, and 0.035" overall height, engineered for M2.5 screw applications. The hardened steel construction achieves Rockwell C40 hardness for maintained spring tension and durability. Manufacturing compliance includes RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with current SVHC requirements as of January 17, 2023, ensuring environmental regulatory adherence for global supply chain integration.