S-98023A041 1.375" ID x 2.5" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Exceptional load distribution with 2.5" outer diameter to prevent surface damage and joint loosening under high stress
• Superior corrosion resistance through zinc yellow-chromate plating for extended service life in harsh industrial environments
• Guaranteed mechanical strength with Rockwell C38 hardness and Grade 8 classification for heavy-duty applications
• Precise compatibility with 1 1/4" fasteners due to consistent 1.375" inner diameter manufacturing
• Reliable dimensional stability maintained through strict adherence to ASME B18.21.1 standards
• Enhanced safety compliance meeting REACH regulations for hazardous substance restrictions
• Optimized thickness range (0.136-0.192") providing ideal compression characteristics without sacrificing durability

Professional Applications & Engineering Value

These Grade 8 flat washers deliver critical engineering solutions for heavy machinery, structural steel connections, and industrial equipment assemblies. The zinc yellow-chromate plated steel construction addresses common corrosion failures in manufacturing plants and outdoor applications, while the SAE designation ensures seamless integration with existing inch-system components. With Rockwell C38 hardness and ASME B18.21.1 compliance, these washers prevent bolt embedment and distribute clamping forces effectively across wider surfaces - solving vibration-induced loosening problems in dynamic load environments. The precise 1.375" ID accommodates standard 1 1/4" screws without play, maintaining alignment integrity in critical bolted joints.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 dimensional standards with 1.375" inner diameter and 2.5" outer diameter specifications. Material certification includes zinc yellow-chromate plated steel with Rockwell C38 hardness verification. Compliance documentation covers REACH (EC 1907/2006) regulations regarding SVHC substances as of June 2023. The Grade 8 classification confirms consistent high-strength performance meeting industrial fastener requirements for inch-system applications.