S-98023A029 0.281" ID x 0.625" OD ASME B18.21.1 SAE Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc yellow-chromate plating for long-term reliability in harsh environments
• High-strength performance backed by Grade 8 classification and Rockwell C38 hardness for demanding applications
• Precise dimensional fit with 0.281" ID and 0.625" OD ensuring secure fastening for 1/4" screws
• Superior load distribution through flat washer design that minimizes surface damage and loosening
• Industry-standard compliance with ASME B18.21.1 specifications for guaranteed quality and interchangeability
• Environmental regulation adherence with REACH compliance for safe use in regulated industries
• Durable steel construction providing excellent mechanical properties and impact resistance

Professional Applications & Engineering Value

This Grade 8 flat washer delivers critical engineering solutions where high-strength fastening and corrosion resistance are paramount. The zinc yellow-chromate plated steel construction provides superior protection against rust and environmental degradation, making it ideal for outdoor equipment, automotive assemblies, and industrial machinery exposed to moisture and chemicals. With its SAE designation and precise dimensions (0.281" ID, 0.625" OD), this washer ensures perfect compatibility with 1/4" fasteners while preventing bolt head embedding and distributing clamp load effectively. The combination of Rockwell C38 hardness and Grade 8 strength classification makes it particularly valuable in high-vibration applications, heavy equipment, and structural assemblies where fastener integrity cannot be compromised.

Specification Summary & Compliance

This flat washer maintains precise dimensional tolerances with 0.281" inner diameter, 0.625" outer diameter, and thickness ranging from 0.051" to 0.080". Manufactured to ASME B18.21.1 standards for dimensional consistency and performance reliability. The product is fully REACH compliant (EC 1907/2006) as of June 14, 2023, containing no substances of very high concern among the 235 SVHC listed. The inch system measurement and SAE designation ensure compatibility with North American industrial standards and replacement parts.