S-91074A112 0.13" ID x 0.28" 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
• Enhanced corrosion protection with zinc-flake coating that provides excellent durability in harsh industrial environments
• Exceptional hardness rated at Rockwell C46 ensures long-term performance and maintains locking force in high-stress applications
• Dual-system compatibility designed for both No. 5 (inch) and M3 (metric) screw sizes, offering flexibility across equipment platforms
• Optimized dimensional stability with precise 0.13" ID and 0.28" OD for secure fit and consistent performance
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Versatile thickness range (0.060-0.080") accommodates various assembly requirements while maintaining locking effectiveness

Professional Applications & Engineering Value

Our zinc-flake-coated steel wedge lock washers deliver critical vibration resistance in demanding industrial applications where fastener integrity is paramount. The dual-sided serration design creates multiple biting surfaces that mechanically lock against both the fastener and substrate, effectively solving the persistent problem of joint loosening in high-vibration environments. The Rockwell C46 hardness rating ensures these washers maintain their structural integrity and locking force even under repeated stress cycles. The zinc-flake coating provides superior corrosion resistance, making them ideal for outdoor equipment, automotive assemblies, and heavy machinery exposed to moisture and chemicals. With compatibility for both No. 5 and M3 screw sizes, these washers offer cross-platform utility in mixed-metric systems common in global manufacturing operations.

Specification Summary & Compliance

This wedge lock washer features precise dimensional specifications including 0.13" inner diameter, 0.28" outer diameter, and thickness ranging from 0.060" to 0.080". The manufacturing incorporates top and bottom serrations for maximum locking effectiveness. Material certification confirms Rockwell C46 hardness for consistent performance. 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.