S-97913A131 0.79" ID x 1.54" 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 with Black Zinc-Flake coating that withstands harsh industrial environments and extends service life
• Enhanced durability from Rockwell C48 hardness rating, maintaining structural integrity in high-stress applications
• Precise compatibility with 3/4" screws and 0.79" ID/1.54" OD dimensions ensuring perfect fit in inch-system assemblies
• Reliable performance in heavy-duty applications thanks to robust steel construction and optimized 0.120-0.140" thickness
• Regulatory compliance with RoHS 3 and REACH standards, meeting international industrial safety requirements
• Double-sided locking action from top and bottom serrations providing maximum security against rotational loosening

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these wedge lock washers solve critical vibration-induced loosening problems in heavy machinery, construction equipment, and transportation systems. The Black Zinc-Flake-coated steel construction delivers superior corrosion resistance where moisture, chemicals, or outdoor exposure would compromise ordinary fasteners. Dual-sided serrations create positive mechanical locking by embedding into both the bolt head and workpiece surface, maintaining clamp force where conventional washers fail. This vibration-resistant washer maintains joint integrity in applications subject to constant shock, impact, or thermal cycling, reducing maintenance frequency and preventing costly downtime in industrial assembly operations requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This inch-system wedge lock washer features precise dimensional specifications with 0.79" inner diameter, 1.54" outer diameter, and 0.120-0.140" thickness range for consistent performance. Manufactured to industrial standards with Rockwell C48 hardness ensuring mechanical strength and wear resistance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety requirements for industrial components. The dual serration design and material properties ensure reliable performance across various temperature ranges and loading conditions typical in heavy equipment applications.