S-97913A119 0.79" ID x 1.21" 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 conditions
• Enhanced corrosion protection with black zinc-flake coating that provides durable barrier against industrial environments
• Exceptional hardness rating of Rockwell C48 ensures minimal deformation and consistent performance under heavy loads
• Precise dimensional compatibility with 0.79" ID and 1.21" OD designed specifically for 3/4" screw applications
• Optimized thickness range (0.120-0.140") provides ideal compression and surface contact for reliable locking action
• Dual-surface engagement with top and bottom serrations creates maximum friction and locking security from both sides
• Regulatory compliance assurance meeting both RoHS 3 and REACH standards for safe industrial use

Professional Applications & Engineering Value

This wedge lock washer delivers critical vibration-resistant performance for demanding industrial applications where fastener security is paramount. The black zinc-flake-coated steel construction provides superior corrosion resistance in harsh environments, while the top and bottom serrations create a mechanical locking action that prevents rotational loosening under dynamic loads. Engineered specifically for 3/4" screw size applications in inch measurement systems, this heavy-duty component solves common challenges in construction equipment, heavy machinery, transportation systems, and industrial assemblies where vibration-induced fastener failure can lead to costly downtime. The combination of Rockwell C48 hardness and precise dimensional tolerances ensures consistent performance across high-stress applications, making it an essential component for engineers specifying reliable fastening solutions.

Specification Summary & Compliance

This wedge lock washer features precise dimensional specifications including 0.79" inner diameter, 1.21" outer diameter, and thickness range of 0.120-0.140" designed for optimal performance with 3/4" screws. Manufactured from high-strength steel with black zinc-flake coating and hardened to Rockwell C48, the component meets industrial standards for locking washers. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.