S-91133A187 1.062" ID Square Washers

Key Features & Benefits at a Glance

• Superior load distribution with a 2" square design that prevents pull-through and surface damage in heavy-duty applications
• Enhanced corrosion resistance through galvanized steel construction, extending service life in harsh industrial environments
• Precise screw compatibility with 1.062" inner diameter specifically engineered for 1" screws, ensuring secure fastening
• Consistent performance maintained by Rockwell B40 hardness, providing reliable mechanical strength under pressure
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Dimensional stability with 0.220-0.280" thickness range, offering uniform pressure distribution across contact surfaces
• Inch system standardization for seamless integration with existing North American equipment and fastener systems

Professional Applications & Engineering Value

This galvanized steel square washer delivers critical engineering solutions where standard washers fall short. The 2" width provides substantially larger surface contact area than round washers, effectively distributing clamping forces in structural steel connections, heavy machinery assemblies, and construction applications. The zinc coating creates a sacrificial barrier against oxidation, making it ideal for outdoor equipment, marine environments, and industrial settings where moisture exposure is common. With its Rockwell B40 hardness, this washer maintains dimensional integrity under extreme vibration and load conditions, preventing deformation that could compromise joint security. The precise 1.062" inner diameter ensures proper clearance for 1" screws while the square profile resists rotation during torque application, simplifying installation in high-volume assembly operations.

Specification Summary & Compliance

Manufactured to inch system standards with critical dimensions including 1.062" inner diameter, 2" width, and 0.220-0.280" thickness range. Constructed from galvanized steel with Rockwell B40 hardness for consistent mechanical properties. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as an alloying element in steel and REACH (EC 1907/2006) regulations as of January 17, 2023, covering 233 Substances of Very High Concern. Designed specifically for use with 1" screws in industrial and construction applications requiring reliable load distribution and corrosion protection.