S-90895A036 0.787" ID x 1.181" 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
• Excellent corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Optimized mechanical performance with Rockwell C38 hardness, providing durable spring action and consistent locking force
• Dual-standard compatibility designed for both 3/4" and M19 screw sizes, offering flexibility for inch and metric applications
• Precision dimensional control with 0.787" ID and 1.181" OD ensuring proper fit and optimal load distribution
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global market acceptance
• Space-efficient design with compact 0.098" overall height, ideal for applications with limited clearance

Professional Applications & Engineering Value

This spring lock washer delivers critical vibration-dampening performance for demanding industrial applications where secure fastening is paramount. The 18-8 stainless steel construction provides exceptional corrosion resistance, making it ideal for outdoor equipment, marine environments, and chemical processing facilities where moisture and corrosive elements are concerns. The dual serration design on both top and bottom surfaces creates multiple biting edges that significantly enhance grip and prevent rotational slippage in high-vibration machinery, automotive assemblies, and heavy equipment. With compatibility for both 3/4" and M19 screw sizes, this washer offers versatile application across imperial and metric systems, reducing inventory complexity while maintaining reliable locking performance in critical joints subject to thermal cycling and dynamic stresses.

Specification Summary & Compliance

This precision-engineered spring lock washer features exact dimensional specifications including 0.787" ID, 1.181" OD, 0.059" thickness, and 0.098" overall height. Manufactured from 18-8 stainless steel with Rockwell C38 hardness, it delivers consistent mechanical properties and spring performance. The washer is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. Designed specifically for 3/4" and M19 screw applications, it provides reliable service across both inch and metric fastener systems in industrial and commercial settings.