S-93281A107 0.53" ID x 0.77" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with spring lock wedge design to prevent fastener loosening under dynamic loads.
• Enhanced corrosion protection from zinc-flake coating, ideal for harsh industrial environments.
• Dual-sided serrations on top and bottom for maximum bite and locking grip on mating surfaces.
• High durability with Rockwell C46 hardness, ensuring long service life and reliability.
• Precision dimensional fit with 0.53" ID and 0.77" OD for accurate installation on 1/2" screws.
• Consistent performance across a thickness range of 0.130-0.140" for uniform clamping force.
• Broad industrial compatibility with inch system measurements for easy integration into existing assemblies.

Professional Applications & Engineering Value

This zinc-flake-coated steel spring lock washer is engineered to solve critical vibration-induced loosening in heavy machinery, automotive, and construction applications. The wedge lock mechanism combined with top and bottom serrations creates a powerful locking action that maintains clamp load under extreme conditions. The zinc-flake coating provides exceptional corrosion resistance, reducing maintenance costs and downtime in corrosive environments. By ensuring secure fastening in industrial washers and assemblies, this component enhances safety, minimizes equipment failure, and supports reliable performance in demanding vibration-resistant settings.

Specification Summary & Compliance

This washer features an ID of 0.53", OD of 0.77", and thickness of 0.130-0.140" for use with 1/2" screw sizes in the inch system. It adheres to standard dimensional and thread compatibility requirements, with a hardness of Rockwell C46 ensuring mechanical integrity. The product is manufactured to meet industry specifications for lock washers and is compliant with RoHS and REACH environmental standards, supporting safe and sustainable use in global markets.