S-93501A033 0.539" ID x 0.748" 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 loading cycles without deformation
• Universal compatibility with both 1/2" and M12 screw systems, eliminating the need for multiple washer types in mixed-standard applications
• Optimized load distribution through precise 0.539" ID and 0.748" OD dimensions that maximize contact area while maintaining clearance
• Reliable performance in harsh environments thanks to high-strength steel material that resists corrosion and maintains clamping force
• Regulatory compliance assurance with full RoHS 3 and REACH compliance, meeting international environmental and safety standards
• Space-efficient design with compact 0.071" overall height that fits into tight assembly configurations without compromising function

Professional Applications & Engineering Value

These spring lock washers deliver critical vibration resistance in demanding industrial applications where fastener integrity is paramount. The dual serration design on both top and bottom surfaces creates multiple biting points that mechanically lock the assembly, effectively countering the rotational forces that cause conventional fasteners to loosen. Manufactured from high-grade steel hardened to Rockwell C40, these washers maintain their spring tension and serration sharpness through extreme vibration cycles, temperature variations, and dynamic loading conditions. Ideal for heavy machinery, automotive assemblies, and industrial equipment, these washers provide engineered solutions for 1/2" and M12 screw applications where reliability cannot be compromised. The precision 0.539" ID and 0.748" OD dimensions ensure perfect fitment while the top and bottom serration pattern works effectively with various surface materials.

Specification Summary & Compliance

These spring lock washers feature precise dimensional specifications including 0.539" internal diameter, 0.748" outer diameter, 0.043" thickness, and 0.071" overall height. Manufactured to exacting standards for use with both inch (1/2") and metric (M12) screw systems, these components maintain consistent performance across measurement systems. The washers are fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards regarding substance restrictions, ensuring environmental responsibility and workplace safety. The Rockwell C40 hardness rating guarantees material integrity and long-term performance in demanding applications.