S-91074A337 0.92" ID x 1.65" 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 dynamic loads.
• Enhanced durability and wear resistance with a Rockwell C46 hardness rating, ensuring long service life in high-stress industrial environments.
• Reliable corrosion protection from the zinc-flake coating, safeguarding the washer against harsh operational conditions.
• Versatile compatibility with both 7/8" (inch) and M22 (metric) fastener systems, simplifying inventory for global projects.
• Optimal load distribution due to the precise 1.65" OD and 0.92" ID, reducing the risk of surface damage and joint failure.
• Consistent performance with a controlled thickness of 0.170-0.190", ensuring uniform clamping force and ease of installation.
• Compliance with global environmental standards, including RoHS 3 and REACH, making them suitable for regulated industries worldwide.

Professional Applications & Engineering Value

This wedge lock washer is engineered to solve critical challenges in heavy-duty applications where vibration-induced fastener failure is a common issue. The top and bottom serrations create a mechanical lock by embedding into both the fastener and workpiece, effectively resisting rotational forces and maintaining bolt preload. Made from zinc-flake-coated steel, it offers excellent corrosion resistance, ideal for outdoor machinery, construction equipment, and automotive assemblies exposed to moisture and chemicals. The Rockwell C46 hardness ensures the serrations remain sharp and functional, even after repeated use, reducing maintenance downtime. Compatible with both 7/8" and M22 fasteners, it provides a reliable solution for mixed measurement systems in global engineering projects, enhancing safety and operational efficiency.

Specification Summary & Compliance

This washer features an ID of 0.92", OD of 1.65", and thickness of 0.170-0.190", designed for precise fit with 7/8" and M22 screws. It is manufactured from zinc-flake-coated steel with a hardness of Rockwell C46, ensuring dimensional stability and strength. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its adherence to environmental and safety standards for industrial use.