S-99041A128 1.062" ID Square Washers

Key Features & Benefits at a Glance

• Exceptional Load Distribution: The 4" square shape provides a larger surface area than round washers, reducing surface pressure and preventing material damage in heavy-duty applications.
• Superior Corrosion Resistance: Zinc-plated steel construction offers reliable protection against rust and corrosion, extending the service life of your assembly in demanding environments.
li>Precision Fit for 1" Screws: The 1.062" inner diameter is engineered for an optimal fit with 1" screws, ensuring secure fastening and reducing the risk of loosening under vibration.
• Enhanced Mechanical Strength: With a Rockwell B40 hardness, this washer maintains its form and function under high stress, providing consistent performance.
• Regulatory Compliance Assurance: Meets RoHS 3 and REACH standards, ensuring the product is safe for use and compliant with international environmental regulations.
• Dimensional Consistency: A thickness range of 0.220-0.280" provides reliable, uniform performance, critical for maintaining assembly integrity in construction and mechanical systems.

Professional Applications & Engineering Value

This heavy-duty square washer is engineered to solve critical challenges in industrial and construction settings. The zinc-plated steel material combats corrosion, a common failure point in outdoor or high-moisture environments, while the substantial 4" width and square profile distribute clamping force over a wider area. This prevents sinkage into softer materials and bolted joint relaxation, which is vital for structural integrity in frameworks, machinery bases, and heavy equipment. The precise 1.062" ID ensures a perfect match for 1" screw applications, eliminating play and enhancing the overall stability of the connection. By integrating this component, engineers can achieve more durable, reliable, and long-lasting assemblies, directly addressing the need for vibration resistance and sustained clamp load in demanding industrial washers applications.

Specification Summary & Compliance

This square washer conforms to inch system measurements with an inner diameter of 1.062" and a width of 4". The thickness is controlled within a precision range of 0.220" to 0.280". It is manufactured from zinc-plated steel with a specified hardness of Rockwell B40. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel and is REACH (EC 1907/2006) compliant as of January 17, 2023, concerning 233 Substances of Very High Concern (SVHC).