S-99041A213 0.219" ID Square Washers

Key Features & Benefits at a Glance

• Superior load distribution with a 2" square design that increases surface contact area, preventing fastener loosening and material damage
• Enhanced corrosion resistance through zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments
• Precision fit for No. 10 screws with 0.219" inner diameter, providing secure fastening and reducing installation errors
• Exceptional durability with Rockwell B40 hardness, maintaining structural integrity under heavy loads and repeated stress
• Consistent performance due to controlled thickness (0.054-0.066"), ensuring uniform pressure distribution across applications
• Compliance with global standards including RoHS 3 and REACH, making them suitable for regulated industries and export markets
• Heavy-duty construction in inch measurement system, offering reliable performance in demanding mechanical assemblies

Professional Applications & Engineering Value

This zinc-plated steel square washer addresses critical engineering challenges in industrial applications where vibration, heavy loads, and environmental exposure are common. The square shape provides a larger bearing surface compared to round washers, effectively distributing clamp load and preventing embedment into soft materials. The zinc plating creates a protective barrier against moisture and chemicals, significantly extending service life in outdoor equipment, machinery, and structural frameworks. With precise dimensions tailored for No. 10 screws, these heavy-duty washers ensure proper alignment and secure fastening in assembly lines, automotive components, and construction projects, reducing maintenance frequency and improving overall system reliability.

Specification Summary & Compliance

Manufactured to exacting standards with 0.219" inner diameter and thickness range of 0.054-0.066" for consistent performance. Constructed from zinc-plated steel with Rockwell B40 hardness rating. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial use.