S-91074A354 1.12" 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.
• Exceptional corrosion protection from the zinc-flake coating, ensuring long-term reliability in harsh industrial environments.
• High mechanical strength with a Rockwell C46 hardness rating, providing excellent durability and resistance to deformation.
• Precise fit for M27 screws with an exact 1.12" ID and 1.65" OD, ensuring easy installation and optimal load distribution.
• Consistent performance guaranteed by a controlled thickness of 0.220-0.240", maintaining reliable clamping force.
• Compliance with global standards including RoHS 3 and REACH, making it suitable for regulated industries and international supply chains.
• Versatile top and bottom serration design for effective locking on both the bolt head and workpiece surfaces.

Professional Applications & Engineering Value

This M27 wedge lock washer is engineered to solve critical vibration-induced loosening in heavy-duty industrial applications. The zinc-flake-coated steel construction provides superior corrosion resistance, extending service life in demanding environments like construction machinery, agricultural equipment, and transportation systems. The dual-sided serrations create a permanent locking action by embedding into both connected surfaces, maintaining clamp load even under severe shock and vibration. This design eliminates the need for additional locking mechanisms, reducing assembly time and maintenance costs. Ideal for high-stress bolted joints where reliability is paramount, this washer ensures joint integrity in critical structural connections, mining equipment, and heavy vehicle assemblies.

Specification Summary & Compliance

This metric wedge lock washer features precise dimensions with 1.12" ID, 1.65" OD, and 0.220-0.240" thickness specifically designed for M27 screw sizes. Manufactured from high-strength steel with Rockwell C46 hardness for consistent performance. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial use worldwide.