S-99041A224 0.531" ID Square Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with zinc-plated steel construction for extended service life in demanding environments
• Exceptional load distribution thanks to the 1.75" square design, preventing surface damage and fastener loosening
• Consistent mechanical strength ensured by Rockwell B40 hardness for reliable performance under pressure
• Precise fit for 1/2" fasteners with 0.531" inner diameter, ensuring secure installation and alignment
• Enhanced durability with 0.112-0.127" thickness providing optimal resistance to deformation
• Global compliance assurance meeting RoHS 3 and REACH standards for safe, regulated industrial use
• Broad industrial compatibility designed for inch-system applications requiring heavy-duty fastening solutions

Professional Applications & Engineering Value

This heavy-duty square washer addresses critical engineering challenges in industrial fastening systems where vibration, corrosion, and load concentration are primary concerns. The zinc-plated steel construction provides a sacrificial layer that significantly extends component life in humid or chemically aggressive environments, while the square geometry offers superior load distribution compared to round washers, preventing embedding into soft materials and maintaining clamp force integrity. With Rockwell B40 hardness, these washers maintain dimensional stability under heavy static and dynamic loads, making them ideal for structural steel connections, heavy machinery assembly, and infrastructure projects where reliable fastening solutions are paramount. The precise 0.531" ID ensures proper alignment with 1/2" fasteners, reducing installation time and improving joint reliability.

Specification Summary & Compliance

This square washer features inch-system dimensions including 0.531" inner diameter, 1.75" width, and 0.112-0.127" thickness range. Manufactured to precise dimensional standards for consistent performance, it demonstrates Rockwell B40 hardness for mechanical reliability. 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.