S-91074A367 1.82" ID x 2.76" 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 extreme conditions
• Exceptional corrosion protection with zinc-flake coating that provides long-lasting durability in harsh industrial environments
• Precise dimensional compatibility with 1 3/4" and M45 screw sizes, ensuring perfect fit and optimal clamping force distribution
• Enhanced mechanical strength from Rockwell C46 hardness rating, maintaining structural integrity under heavy loads
• Reliable locking performance through wedge-action design that creates constant tension and eliminates bolt relaxation
• Versatile application capability supporting both inch and metric systems for global engineering projects
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial use worldwide

Professional Applications & Engineering Value

Engineered for demanding industrial applications where vibration-induced fastener failure is a critical concern, these wedge lock washers deliver unmatched reliability. The zinc-flake-coated steel construction provides superior corrosion resistance in outdoor, marine, and chemical exposure environments, while the top and bottom serrations create multiple biting surfaces that resist rotational forces. The precise 1.82" ID and 2.76" OD dimensions ensure proper load distribution across joint surfaces, preventing surface damage and maintaining clamping force integrity. Ideal for heavy machinery, structural steel connections, transportation equipment, and power generation systems, these locking washers solve the persistent challenge of maintaining bolt preload in high-vibration scenarios, reducing maintenance frequency and preventing costly downtime.

Specification Summary & Compliance

This wedge lock washer features precise dimensional specifications with 1.82" inner diameter, 2.76" outer diameter, and thickness ranging 0.270-0.290" to accommodate standard tolerances. Manufactured from high-strength steel with Rockwell C46 hardness for optimal mechanical properties, the washer incorporates dual-sided serrations for maximum locking effectiveness. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, including the latest SVHC requirements, ensuring environmental safety and regulatory acceptance for industrial applications across global markets.