S-90474A128 0.281" ID x 1" 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
- Exceptional corrosion resistance with zinc yellow-chromate plating for long-lasting performance in harsh industrial environments
- Superior load distribution thanks to the 1" outer diameter, preventing surface damage and maintaining joint integrity
- High-strength durability with Grade 8 classification and Rockwell C38 hardness for demanding mechanical applications
- Precise fit and alignment ensured by the 1/4" inner diameter, compatible with standard 1/4" fasteners
- Reliable dimensional consistency manufactured to ASME B18.21.1 specifications for guaranteed interchangeability
- Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable industrial use
- Enhanced fastener protection through uniform thickness (0.056-0.071") that absorbs shock and reduces wear
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 8 flat washers provide critical solutions for vibration management, load distribution, and corrosion prevention. The zinc yellow-chromate plated steel construction delivers superior protection against rust and chemical exposure in manufacturing, construction, and automotive assemblies. With precise 1/4" ID x 1" OD dimensions and Rockwell C38 hardness, they maintain clamping force under extreme pressure, preventing joint failure in machinery, structural frameworks, and high-torque fastener systems. Their compliance with ASME B18.21.1 standards ensures consistent performance where dimensional accuracy and reliability are non-negotiable.
Specification Summary & Compliance
This flat washer features inch system measurements with 0.281" inner diameter, 1" outer diameter, and 0.056-0.071" thickness range. Manufactured to ASME B18.21.1 specifications for dimensional accuracy and Grade 8 strength classification. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
