S-90474A115 0.469" ID x 0.875" OD ASME B18.21.1 ASME Washers
ASME 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
- Superior corrosion resistance with zinc yellow-chromate plating, extending service life in harsh industrial environments
- Exceptional load distribution due to precise 0.469" ID and 0.875" OD dimensions, preventing surface damage and joint loosening
- High-strength Grade 8 performance with Rockwell C38 hardness, ensuring reliable performance under heavy-duty mechanical stress
- Guaranteed dimensional accuracy and interchangeability through strict adherence to ASME B18.21.1 standards
- Enhanced durability from 0.056-0.071" thickness, providing consistent performance in high-vibration applications
- Full regulatory compliance with RoHS 3 and REACH, making them safe for global industrial supply chains
- Optimized for 7/16" fasteners with perfect fit, reducing installation time and improving assembly reliability
Professional Applications & Engineering Value
These Grade 8 flat washers deliver critical engineering solutions where corrosion resistance and structural integrity are paramount. The zinc yellow-chromate plated steel construction provides superior protection against rust and chemical exposure, making them ideal for outdoor equipment, marine applications, and industrial machinery exposed to moisture. With Rockwell C38 hardness and heavy-duty Grade 8 classification, they maintain clamping force under extreme vibration and load conditions, preventing joint failure in construction, automotive, and manufacturing assemblies. The precise 7/16" ID and 0.875" OD dimensions ensure optimal load distribution across bolted connections, reducing surface deformation and extending component lifespan in critical industrial washers applications.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 specifications with dimensional accuracy for 7/16" screw size (0.469" ID, 0.875" OD, 0.056-0.071" thickness). Features Rockwell C38 hardness and meets Grade 8 strength requirements. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial markets.
