S-98026A038 1.062" ID x 2.5" OD ASME B18.21.1 Oversized Washers

Key Features & Benefits at a Glance

• Superior load distribution with 2.5" OD and 1.062" ID for enhanced joint stability and reduced surface pressure
• Exceptional corrosion resistance through zinc yellow-chromate plating, extending service life in harsh industrial environments
• High-strength performance with Grade 8 classification and Rockwell C38 hardness for demanding heavy-duty applications
• Precise dimensional consistency manufactured to USS standards for reliable fit with 1" fasteners
• Regulatory compliance assurance meeting ASME B18.21.1 specifications and REACH environmental standards
• Optimized thickness range (0.136-0.192") providing ideal compression characteristics and vibration resistance
• Heavy-duty construction from plated steel material ensuring durability under extreme mechanical stress

Professional Applications & Engineering Value

This Grade 8 USS flat washer delivers critical engineering solutions for industrial applications where vibration resistance and load distribution are paramount. The zinc yellow-chromate plated steel construction provides superior corrosion resistance in demanding environments including construction equipment, heavy machinery, and structural steel connections. With its 1.062" ID precisely matching 1" fasteners and 2.5" OD creating optimal bearing surface, this washer prevents joint loosening and surface damage while maintaining Rockwell C38 hardness under extreme pressure. The USS designation ensures compatibility with inch-system applications requiring reliable, heavy-duty fastening solutions that withstand intense mechanical stress and environmental exposure.

Specification Summary & Compliance

Manufactured to exact USS standards with dimensional specifications of 1.062" ID, 2.5" OD, and thickness range of 0.136-0.192". This Grade 8 flat washer meets ASME B18.21.1 manufacturing specifications and demonstrates full compliance with REACH (EC 1907/2006) regulations regarding substance restrictions. The Rockwell C38 hardness rating confirms the material's ability to maintain structural integrity under heavy loads, while the inch system measurements ensure precise fitment with standard 1" fasteners in industrial applications requiring certified performance and regulatory adherence.