S-98026A036 0.812" ID x 2" OD ASME B18.21.1 Oversized Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc yellow-chromate plating for extended service life in harsh environments
• Superior load distribution with 2" outer diameter, preventing surface damage and joint loosening
• High-strength performance with Grade 8 classification and Rockwell C38 hardness for demanding applications
• Precise fit and alignment with 3/4" inner diameter designed specifically for 3/4" fasteners
• Industry-standard compliance meeting ASME B18.21.1 specifications for reliable engineering applications
• Environmental regulation adherence with REACH compliance for safe industrial use
• Optimal thickness range (0.122-0.177") providing consistent compression and vibration resistance

Professional Applications & Engineering Value

This Grade 8 USS flat washer delivers critical engineering solutions for heavy-duty industrial applications where vibration resistance and load distribution are paramount. The zinc yellow-chromate plated steel construction provides exceptional corrosion resistance in challenging environments, from outdoor construction to marine applications. With its 2" outer diameter, this washer effectively distributes clamping force over a wider surface area, preventing material deformation and maintaining bolt tension in high-vibration machinery. The Rockwell C38 hardness ensures the washer maintains its structural integrity under extreme pressure, while the precise 3/4" inner diameter guarantees perfect alignment with corresponding fasteners. Engineered to ASME B18.21.1 standards, this washer provides reliable performance in structural steel connections, heavy equipment assembly, and industrial machinery where failure is not an option.

Specification Summary & Compliance

This USS flat washer features precise dimensional specifications with 0.812" inner diameter, 2" outer diameter, and thickness ranging from 0.122" to 0.177". Manufactured from zinc yellow-chromate plated steel with Rockwell C38 hardness, it meets Grade 8 strength classification requirements. The product conforms to ASME B18.21.1 standards for dimensional accuracy and performance, and is REACH compliant (EC 1907/2006) as of June 14, 2023, addressing 235 Substances of Very High Concern for environmental safety and regulatory compliance in industrial applications.