S-91074A336 0.79" ID x 1.54" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through wedge-lock design prevents fastener loosening in high-stress applications
• Dual-sided serration on both top and bottom surfaces ensures maximum grip and anti-rotation performance
• Exceptional durability with Rockwell C46 hardness rating maintains structural integrity under heavy loads
• Advanced corrosion protection from zinc-flake coating extends service life in harsh industrial environments
• Precision dimensional fit with 0.79" ID and 1.54" OD ensures proper installation for 3/4" screws
• Regulatory compliance with RoHS 3 and REACH standards guarantees environmental and safety adherence
• Consistent locking performance across temperature variations and dynamic loading conditions

Professional Applications & Engineering Value

This zinc-flake-coated steel wedge lock washer delivers critical vibration resistance for demanding industrial applications where fastener security is paramount. The dual serration pattern on both top and bottom surfaces creates multiple biting edges that mechanically lock against both the fastener head and bearing surface, effectively solving common loosening problems in heavy machinery, construction equipment, and transportation systems. Engineered with Rockwell C46 hardness, this washer maintains its locking capability under extreme vibration and shock loads that would compromise standard washers. The zinc-flake coating provides superior corrosion resistance compared to conventional plating methods, making it ideal for outdoor applications and harsh environments where chemical exposure and moisture are concerns. This combination of mechanical locking action and environmental protection ensures long-term reliability in critical industrial fastening applications.

Specification Summary & Compliance

This inch-system wedge lock washer features precise dimensional specifications including 0.79" inner diameter, 1.54" outer diameter, and 0.120-0.140" thickness range, engineered for optimal performance with 3/4" screws. The washer meets industry standards for locking fastener applications and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Manufacturing consistency ensures reliable vibration-resistant performance across all production batches, with the zinc-flake-coated steel construction providing both mechanical strength and corrosion protection for extended service life in demanding industrial environments.