S-96582A433 1.25" ID x 2.75" OD ASME B18.21.1 USS Washers

Key Features & Benefits at a Glance

• Superior corrosion protection with black corrosion-resistant coated steel construction for extended service life in harsh environments
• Optimal load distribution with 2.75" outer diameter providing excellent surface coverage and pressure dispersion
• Precision fit for 1 1/8" screws with 1.25" inner diameter ensuring secure fastening and alignment
• Heavy-duty performance with USS designation and thickness range of 0.136-0.192" for demanding industrial applications
• Industry-standard compliance manufactured to ASME B18.21.1 specifications for reliable dimensional accuracy
• Environmental responsibility with full RoHS 3 and REACH compliance meeting international regulatory standards
• Versatile inch system compatibility designed for seamless integration with standard inch-based fastening systems

Professional Applications & Engineering Value

These USS flat washers deliver exceptional engineering value through their black corrosion-resistant coated steel construction, specifically engineered to combat rust and degradation in demanding industrial environments. The 1.25" ID x 2.75" OD dimensional configuration provides optimal load distribution for 1 1/8" screw sizes, preventing surface damage and maintaining joint integrity under heavy loads. The ASME B18.21.1 compliance ensures precise dimensional tolerances and consistent performance across applications including structural steel connections, heavy machinery assembly, and industrial equipment maintenance. These heavy-duty flat washers effectively solve common engineering challenges such as surface marring, bolt loosening due to vibration, and premature failure from environmental exposure, making them ideal for construction, manufacturing, and infrastructure projects where reliability is paramount.

Specification Summary & Compliance

This USS flat washer features precision dimensions with 1.25" inner diameter, 2.75" outer diameter, and thickness ranging from 0.136" to 0.192" designed for 1 1/8" screw sizes. Manufactured to ASME B18.21.1 specifications ensuring dimensional accuracy and performance consistency. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant with current substance restrictions, meeting international environmental and safety standards for industrial applications.