S-93281A109 0.67" ID x 1" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through dual-sided serrations that bite into mating surfaces, preventing loosening under dynamic loads
• Enhanced corrosion protection with zinc-flake coating that provides excellent durability in harsh industrial environments
• Universal compatibility with both 5/8" and M16 screw sizes, eliminating the need for multiple washer types
• Optimized load distribution with precise 1" outer diameter and 0.67" inner diameter dimensions
• Exceptional hardness retention with Rockwell C46 rating ensuring long-term performance under high stress conditions
• Dual measurement system support in both inch and metric specifications for global engineering applications
• Reliable locking action from spring lock wedge design that maintains tension through thermal cycling and vibration

Professional Applications & Engineering Value

This Spring Lock Wedge Lock Washer delivers critical vibration-resistant performance for demanding industrial applications where fastener security is paramount. The zinc-flake-coated steel construction provides superior corrosion resistance compared to standard coatings, making it ideal for outdoor equipment, heavy machinery, and automotive assemblies exposed to moisture and chemicals. The top and bottom serration design creates multiple biting edges that penetrate both the fastener and work surface, effectively resisting rotational forces that cause conventional washers to fail. Engineered specifically for 5/8" and M16 screw applications, this washer maintains consistent clamping force through thermal expansion cycles and mechanical vibration, significantly reducing maintenance frequency and preventing costly downtime in critical assemblies.

Specification Summary & Compliance

This high-performance washer features precise dimensional specifications including 0.67" ID, 1" OD, and thickness between 0.170-0.180" with Rockwell C46 hardness ensuring consistent performance. Manufactured to meet industry standards for lock washers, the product is available in both inch and metric systems and complies with relevant industrial specifications for vibration-resistant fasteners. The zinc-flake coating provides environmental protection while maintaining electrical conductivity where required, meeting industry requirements for corrosion resistance in demanding applications.