S-91102A034 0.574" ID x 0.965" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance thanks to Rockwell C38 hardness, preventing fastener loosening in high-stress applications
• Enhanced corrosion protection through zinc-plated steel construction, extending service life in demanding environments
• Reliable spring tension from standard split design, maintaining consistent clamping force under dynamic loads
• Precise fit for 9/16" screws with 0.574" ID and 0.965" OD dimensions, ensuring proper installation and alignment
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing interchangeability and performance reliability
• Environmental regulation compliance meeting RoHS 3 and REACH standards, suitable for regulated industries
• Heavy-duty construction with 0.141" thickness, providing durable performance in industrial fastening applications

Professional Applications & Engineering Value

This zinc-plated steel split lock washer delivers critical vibration resistance in demanding industrial applications where fastener security is paramount. The Rockwell C38 hardness ensures the washer maintains its spring tension under continuous stress, preventing the common problem of bolt loosening in machinery, automotive assemblies, and structural frameworks. Engineered to ASME B18.21.1 standards, this split lock washer provides reliable performance in equipment subject to constant vibration, thermal cycling, and dynamic loading conditions. The zinc plating offers essential corrosion protection, making it suitable for outdoor applications or environments with moderate chemical exposure. For 9/16" screw applications requiring dependable, long-term fastening solutions, this washer delivers consistent clamping force and prevents rotational slippage that can compromise assembly integrity.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications including 0.574" ID, 0.965" OD, and 0.141" thickness, engineered for optimal performance with 9/16" fasteners. Manufactured in compliance with ASME B18.21.1 standards for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations regarding substance restrictions, ensuring environmental responsibility and regulatory acceptance across global markets. The zinc-plated steel construction combined with Rockwell C38 hardness provides the necessary mechanical properties for reliable vibration resistance in industrial applications.