S-99041A206 0.156" ID Square Washers

Key Features & Benefits at a Glance

• Enhanced Load Distribution - The 2" square design provides a larger surface area than round washers, reducing surface pressure and preventing material damage in heavy-duty applications.
• Superior Corrosion Protection - Zinc-plated steel construction offers excellent resistance to rust and environmental degradation, extending service life in demanding industrial environments.
• Precision Fit for No. 6 Screws - 0.156" inner diameter ensures optimal alignment and secure fastening, minimizing installation errors and improving assembly efficiency.
• Exceptional Mechanical Strength - Rockwell B40 hardness provides reliable resistance to deformation under load, maintaining fastener integrity in high-stress applications.
• Consistent Performance Standards - Tight thickness tolerance (0.054-0.066") guarantees uniform compression and reliable performance across multiple installations.
• Global Compliance Assurance - Meets RoHS 3 and REACH environmental regulations, ensuring safe use in international markets and regulated industries.
• Dimensional Compatibility - Manufactured to inch system specifications for seamless integration with standard North American equipment and components.

Professional Applications & Engineering Value

This zinc-plated steel square washer addresses critical engineering challenges in industrial fastening systems where standard round washers prove insufficient. The 2" width creates an expanded bearing surface that effectively distributes clamping force across a wider area, preventing surface indentation in soft materials and reducing stress concentration in structural assemblies. The Rockwell B40 hardness ensures the washer maintains its geometric integrity under sustained vibration and dynamic loads, a common failure point in machinery and equipment applications. For No. 6 screw installations in electrical enclosures, automotive components, and construction frameworks, the precise 0.156" ID provides secure positioning while the zinc plating delivers essential corrosion protection in humid or chemically aggressive environments. This combination of dimensional precision, material strength, and surface treatment makes it an optimal choice for maintenance professionals and OEM manufacturers seeking reliable heavy-duty washer solutions that withstand industrial operating conditions.

Specification Summary & Compliance

This square washer features inch system dimensions with 2" width, 0.156" inner diameter, and controlled thickness between 0.054-0.066". Manufactured from zinc-plated steel with Rockwell B40 hardness for consistent mechanical properties. The product fully complies with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical substances, including the latest SVHC requirements as of June 14, 2023. Designed specifically for use with No. 6 screws in industrial and commercial applications.