S-98023A116 0.344" ID x 0.688" OD ASME B18.21.1 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc yellow-chromate plating, extending service life in harsh industrial environments
• Exceptional load distribution thanks to precise 0.688" OD and 0.344" ID dimensions, preventing surface damage and fastener loosening
• High-strength performance with Grade 8 classification and Rockwell C38 hardness, ensuring reliability under heavy loads
• Industry-standard compliance meeting ASME B18.21.1 specifications for consistent quality and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance, supporting sustainable manufacturing practices
• Optimized fit for 5/16" screws with exact inner diameter, reducing installation time and improving assembly accuracy
• Durable material construction using plated steel for long-term mechanical integrity in demanding applications

Professional Applications & Engineering Value

These Grade 8 flat washers deliver critical engineering solutions where vibration resistance, corrosion protection, and load-bearing capacity are paramount. The zinc yellow-chromate plated steel construction provides superior barrier protection against moisture, chemicals, and environmental degradation, significantly reducing maintenance frequency in outdoor, marine, and industrial settings. With precise 5/16" screw compatibility and consistent 0.051-0.080" thickness, these washers prevent joint failure by distributing clamp load evenly across surfaces. Ideal for heavy machinery, structural steel connections, automotive assemblies, and construction equipment, they address common challenges of fastener loosening, galvanic corrosion, and surface damage while maintaining ASME B18.21.1 dimensional standards for reliable performance across industrial applications.

Specification Summary & Compliance

Manufactured to exact ASME B18.21.1 specifications with inch system dimensions: 0.344" ID, 0.688" OD, and 0.051-0.080" thickness range. Features Grade 8 strength classification with Rockwell C38 hardness for heavy-duty performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance adherence for global industrial applications.