S-98180A110 0.281" ID x 0.625" OD ASME B18.21.1 SAE Washers
SAE Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional load distribution with precise 0.281" ID and 0.625" OD dimensions for optimal performance with 1/4" screws
- Superior corrosion resistance through zinc-flake coated steel construction, extending service life in harsh industrial environments
- Maximum mechanical strength with Grade 8 classification and Rockwell C38 hardness for heavy-duty applications
- Reliable dimensional consistency manufactured to SAE standards and ASME B18.21.1 specifications
- Enhanced durability with controlled thickness (0.055-0.065") ensuring uniform pressure distribution
- Environmental compliance meeting RoHS 3 and REACH regulations for global manufacturing requirements
- Versatile industrial compatibility designed for high-stress applications across multiple sectors
Professional Applications & Engineering Value
This Grade 8 flat washer delivers critical engineering solutions for industrial applications where vibration resistance and load distribution are paramount. The zinc-flake coated steel construction provides superior corrosion protection compared to standard coatings, making it ideal for automotive assemblies, heavy machinery, and construction equipment exposed to demanding environmental conditions. With its SAE standard compliance and ASME B18.21.1 specification adherence, this washer ensures precise fit and consistent performance in 1/4" screw applications, preventing loosening under dynamic loads while maintaining Rockwell C38 hardness for long-term reliability in high-stress fastening systems.
Specification Summary & Compliance
Manufactured to exact SAE standards with dimensional precision: 0.281" inner diameter, 0.625" outer diameter, and 0.055-0.065" thickness range. Complies with ASME B18.21.1 manufacturing specifications for flat washers and meets Grade 8 strength requirements with Rockwell C38 hardness. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial applications.
