S-96582A437 1.75" ID x 3.75" 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 3.75" OD and 1.75" ID dimensions to prevent surface damage and joint loosening
• Precision-engineered thickness (0.153-0.213") ensures consistent performance and reliable spacing in heavy-duty assemblies
• Guaranteed dimensional accuracy through full compliance with ASME B18.21.1 industrial standards
• Environmental regulation compliance with RoHS 3 and REACH SVHC requirements for global supply chain compatibility
• Perfect fit compatibility specifically designed for 1 5/8" screw applications in industrial fastening systems
• Heavy-duty construction using coated steel material for maximum durability under high-stress conditions

Professional Applications & Engineering Value

This USS flat washer delivers critical engineering solutions for industrial applications where corrosion resistance and load distribution are paramount. The black corrosion-resistant coated steel construction provides essential protection against environmental degradation in outdoor infrastructure, marine equipment, and chemical processing facilities. With its substantial 3.75" outer diameter, this heavy-duty washer effectively distributes clamping force over a wider surface area, preventing material deformation and maintaining joint integrity in structural steel connections, heavy machinery assemblies, and construction applications. The precise dimensional control ensures reliable performance with 1 5/8" screws in high-vibration environments where fastener security is critical to operational safety and equipment longevity.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional specifications with inner diameter of 1.75", outer diameter of 3.75", and thickness ranging 0.153-0.213". This USS flat washer maintains precision tolerances for consistent performance in industrial fastening systems. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements (including SVHC compliance as of 06/14/2023), ensuring environmental responsibility and global market acceptance for your procurement needs.