S-93501A031 0.413" ID x 0.63" 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, preventing loosening under dynamic loads
• Exceptional durability from Rockwell C40 hardened steel construction that withstands repeated tension cycles without deformation
• Universal compatibility with both inch (3/8") and metric (M10) fastener systems, reducing inventory complexity
• Reliable locking performance through precise 0.413" ID and 0.63" OD dimensions that ensure proper fit and consistent clamping force
• Optimized height-to-thickness ratio (0.063" height, 0.039" thickness) provides ideal spring tension while maintaining low profile
• Compliance-ready for global markets with full RoHS 3 and REACH environmental regulation adherence
• Reduced maintenance frequency through hardened steel construction that resists wear in high-vibration industrial environments

Professional Applications & Engineering Value

This spring lock washer delivers critical vibration-resistant performance for demanding industrial applications where fastener security is paramount. The dual serration on top and bottom surfaces creates multiple biting edges that mechanically lock against both the fastener head and base material, effectively solving common loosening problems in machinery, automotive assemblies, and heavy equipment. Manufactured from Rockwell C40 hardened steel, this washer maintains its spring tension and locking capability through extreme vibration cycles and temperature variations. The optimized 0.063" overall height provides sufficient deflection for spring action while fitting into tight spaces, making it ideal for industrial applications requiring reliable fastening in confined assemblies. Compatible with both 3/8" and M10 screw sizes, it offers flexibility for operations using mixed measurement systems.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.413" ID, 0.63" OD, 0.039" thickness, and 0.063" overall height. Manufactured to industrial standards for inch and metric systems with compatibility for 3/8" and M10 fasteners. The Rockwell C40 hardness rating ensures consistent performance under load. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for industrial components.