S-93501A035 0.669" ID x 0.945" OD Heavy-Vibration-Resistant Spring Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with dual top and bottom serrations that bite into mating surfaces to prevent loosening under dynamic loads
• Dual-system compatibility for both 5/8" inch and M16 metric screw applications, eliminating the need for multiple washer types
• Exceptional durability from Rockwell C40 hardened steel construction that withstands heavy-duty industrial cycling
• Precise dimensional fit with 0.669" ID and 0.945" OD ensuring proper alignment and distribution of clamping forces
• Reliable performance in demanding environments thanks to optimal 0.083" overall height and 0.051" thickness balance
• Regulatory compliance assurance with RoHS 3 and REACH certifications for global industrial applications
• Reduced maintenance costs through extended service life and minimized fastener failure in high-vibration equipment

Professional Applications & Engineering Value

This spring lock washer delivers critical engineering solutions for equipment subject to constant vibration, thermal cycling, and dynamic loading conditions. The steel construction with Rockwell C40 hardness provides the ideal balance of strength and flexibility, while the dual serration pattern on both top and bottom surfaces creates multiple biting points that significantly enhance grip compared to standard single-serration washers. This design is particularly valuable in heavy-duty industrial applications such as machinery assembly, automotive manufacturing, and construction equipment where 5/8" and M16 fasteners are commonly employed. The washer's specific dimensional configuration (0.669" ID / 0.945" OD) ensures optimal surface contact and pressure distribution, effectively preventing joint relaxation and reducing the need for frequent retorquing in critical connections.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.669" internal diameter, 0.945" outer diameter, 0.051" thickness, and 0.083" overall height. Manufactured from high-grade steel with Rockwell C40 hardness, it is engineered for compatibility with both 5/8" inch and M16 metric screw systems. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in global industrial markets. The dual serration design provides enhanced locking performance for applications requiring reliable vibration resistance.