S-98026A032 0.5" ID x 1.25" OD ASME B18.21.1 Oversized Washers

Key Features & Benefits at a Glance

• Superior load distribution with 1.25" OD and 7/16" ID to prevent surface damage and maintain joint integrity under high stress
• Exceptional corrosion resistance from zinc yellow-chromate plating, extending service life in harsh industrial environments
• High-strength performance with Grade 8 classification and Rockwell C38 hardness for demanding applications
• Precise dimensional consistency ensuring reliable fit and uniform pressure distribution across fastened assemblies
• Regulatory compliance assurance meeting ASME B18.21.1 standards and REACH environmental requirements
• Optimized thickness range (0.064-0.104") providing ideal compression characteristics without sacrificing durability
• Reduced maintenance needs through robust steel construction and protective plating for long-term reliability

Professional Applications & Engineering Value

This Grade 8 USS flat washer delivers critical engineering solutions for heavy machinery, structural steel connections, and industrial equipment where vibration resistance and load distribution are paramount. The zinc yellow-chromate plated steel construction combats corrosion in outdoor or chemically aggressive environments, while the Rockwell C38 hardness ensures dimensional stability under extreme pressure. Manufactured to ASME B18.21.1 specifications, these 7/16" ID washers provide precise bearing surfaces that prevent bolt head embedding and distribute clamping forces effectively across connected components. The 1.25" OD design offers maximum surface coverage, making them ideal for structural bolting applications where joint integrity cannot be compromised.

Specification Summary & Compliance

This USS flat washer features precise dimensional tolerances with 7/16" internal diameter, 1.25" outer diameter, and thickness ranging 0.064-0.104". Manufactured to ASME B18.21.1 standards for dimensional consistency and performance reliability. The product maintains full compliance with REACH (EC 1907/2006) regulations regarding substance restrictions and demonstrates Grade 8 mechanical properties with Rockwell C38 hardness verification for high-strength applications.