S-91812A815 1.24" ID x 2.3" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through dual top and bottom serrations that bite into mating surfaces to prevent loosening under dynamic loads
• Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments
• Enhanced durability and wear resistance from case hardening treatment achieving Rockwell C51 hardness
• Reliable performance across systems with availability in both inch (1 1/8") and metric (M30) screw compatibility
• Precise dimensional fit with 1.24" ID and 2.3" OD ensuring proper installation and load distribution
• Compliance with global standards including RoHS 3 and REACH for environmentally responsible procurement
• Optimized thickness range (0.260-0.280") providing consistent clamping force while accommodating surface variations

Professional Applications & Engineering Value

These 316 stainless steel wedge lock washers deliver critical vibration resistance in demanding applications where fastener security is paramount. The dual serration design creates multiple biting points that mechanically lock the assembly, effectively solving common loosening problems in heavy machinery, transportation equipment, and structural frameworks. The case hardened treatment and Rockwell C51 hardness ensure the serrations maintain their grip through repeated stress cycles without deformation. Particularly valuable in industrial applications exposed to moisture, chemicals, or temperature variations, the 316 stainless steel composition provides superior corrosion resistance compared to standard grades. This combination of mechanical locking action and material durability makes these wedge lock washers essential components for engineers designing reliable, long-lasting assemblies in vibration-prone environments.

Specification Summary & Compliance

This wedge lock washer features precise dimensions with 1.24" inner diameter and 2.3" outer diameter, designed for use with 1 1/8" or M30 fasteners. The manufacturing process includes case hardening treatment to achieve Rockwell C51 hardness for optimal performance. The product maintains dimensional stability within the specified thickness range of 0.260-0.280". Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures adherence to environmental and safety standards for industrial components.