S-91074A132 0.45" ID x 0.73" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents loosening under dynamic loads, ensuring long-term joint integrity
• Dual-sided serration design (top and bottom) provides maximum bite and anti-rotation performance on both contact surfaces
• Zinc-flake-coated steel construction offers excellent corrosion resistance while maintaining high tensile strength
• Rockwell C46 hardness rating delivers exceptional durability and wear resistance in demanding applications
• Dual measurement system compatibility works with both 7/16" inch and M11 metric fasteners for versatile installation
• Precision dimensional control with 0.45" ID and 0.73" OD ensures proper fit and optimal load distribution
• Environmental compliance assurance meets RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This zinc-flake-coated steel wedge lock washer delivers critical vibration-resistant performance where conventional fasteners fail. The top and bottom serrations create multiple locking points that bite into both the fastener head and base material, effectively resisting rotational forces in high-vibration environments. The zinc-flake coating provides superior corrosion protection without compromising the Rockwell C46 hardness, making it ideal for outdoor equipment, heavy machinery, and transportation applications where exposure to elements and constant motion would compromise standard washers. Its dual compatibility with both 7/16" inch and M11 metric screw sizes simplifies inventory management while providing reliable locking performance across diverse industrial assemblies, from structural steel connections to mechanical power transmission systems.

Specification Summary & Compliance

This wedge lock washer features precise dimensional specifications with 0.45" inner diameter, 0.73" outer diameter, and thickness ranging 0.090-0.110". Manufactured from zinc-flake-coated steel with Rockwell C46 hardness, it's engineered for compatibility with both inch (7/16") and metric (M11) fastener systems. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for industrial applications requiring reliable vibration-resistant locking solutions.