S-91812A235 0.67" ID x 1" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with dual-sided serrations that bite into mating surfaces to prevent loosening under extreme conditions
• Exceptional corrosion resistance from 316 stainless steel construction, ideal for harsh chemical and marine environments
• Enhanced durability and wear resistance through case hardening to Rockwell C51 hardness for extended service life
• Dual measurement compatibility with both 5/8" (inch) and M16 (metric) screw sizes for versatile application across global projects
• Reliable locking performance with precision-engineered wedge design that maintains clamp load in high-vibration applications
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Optimized dimensional stability with 0.67" ID and 1" OD providing secure fit and consistent performance

Professional Applications & Engineering Value

This 316 stainless steel wedge lock washer delivers critical vibration-resistant performance for demanding industrial applications where fastener security is paramount. The top and bottom serrated design creates multiple biting edges that mechanically lock against both the bolt head/nut and the workpiece surface, effectively preventing rotation and loosening caused by machinery vibration, thermal cycling, or dynamic loading. The case hardened construction to Rockwell C51 ensures the serrations maintain their sharpness and locking capability through repeated installation cycles, while the 316 stainless steel material provides superior corrosion resistance in chemical processing, marine, and outdoor applications. Engineered for heavy-duty industrial washers applications, this washer solves common maintenance issues in equipment manufacturing, structural steel connections, and transportation infrastructure where vibration-induced fastener failure can lead to costly downtime.

Specification Summary & Compliance

This wedge lock washer features precise dimensional specifications including 0.67" inner diameter, 1" outer diameter, and 0.110-0.130" thickness range, compatible with both 5/8" and M16 fastener systems. The manufacturing process includes case hardening treatment achieving Rockwell C51 hardness for optimal wear resistance. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.