S-91074A308 0.77" ID x 1.14" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through wedge lock design that maintains consistent clamping force under dynamic loads
• Enhanced corrosion protection with zinc-flake coating for extended service life in harsh industrial environments
• Maximum grip performance with dual-sided serrations (top and bottom) that bite into both mating surfaces
• Precise M18 compatibility with 0.77" ID ensuring perfect fit and optimal load distribution
• Exceptional durability with Rockwell C46 hardness rating for long-term reliability in heavy-duty applications
• Environmental compliance meeting RoHS 3 and REACH standards for safe industrial use
• Metric system compatibility for seamless integration with international equipment and standards

Professional Applications & Engineering Value

This M18 wedge lock washer delivers critical engineering solutions for industries where vibration-induced loosening compromises safety and performance. The zinc-flake-coated steel construction provides superior corrosion resistance while maintaining the structural integrity needed for heavy machinery, automotive assemblies, and construction equipment. The dual serration design (top and bottom) creates multiple biting surfaces that dig into both the fastener and base material, effectively preventing rotational movement and maintaining clamp load. This makes it ideal for vibration-resistant applications in manufacturing plants, transportation systems, and industrial machinery where consistent bolt tension is essential for operational safety and reduced maintenance downtime.

Specification Summary & Compliance

This metric wedge lock washer features precise dimensional specifications with 0.77" ID, 1.14" OD, and thickness ranging 0.120-0.140". The washer maintains Rockwell C46 hardness for consistent performance and is manufactured to exacting industrial standards. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial applications while meeting rigorous material and manufacturing specifications for reliability in demanding conditions.