S-90495A134 0.348" ID x 2" OD Oversized Washers
Oversized 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 environments
- Superior load distribution thanks to the 2" outer diameter, preventing surface damage and joint loosening
- High-strength Grade 8 classification ensures reliable performance under heavy loads and high-stress conditions
- Precise fit for 5/16" fasteners with 0.348" inner diameter for secure, vibration-resistant assemblies
- Enhanced durability from Rockwell C38 hardness, resisting deformation and maintaining structural integrity
- Environmental compliance with RoHS 3 and REACH standards for safe, sustainable industrial use
- Versatile industrial application due to inch system sizing and robust steel construction
Professional Applications & Engineering Value
This Grade 8 flat washer is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where vibration, corrosion, and high tensile loads are common. The zinc yellow-chromate plated steel construction provides a durable barrier against rust and chemical exposure, significantly extending service life in outdoor or corrosive environments. With its 2" OD, it effectively distributes clamping force over a wider area, preventing surface indentation and maintaining bolt preload in 5/16" fastener applications. The Rockwell C38 hardness ensures the washer maintains its shape under extreme pressure, reducing maintenance downtime and improving safety in structural connections, making it an ideal choice for demanding industrial washers requirements.
Specification Summary & Compliance
This flat washer meets inch system standards with precise dimensions: 0.348" ID, 2" OD, and thickness range of 0.047-0.080". Manufactured to Grade 8 strength classification for high-stress applications, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage and environmental responsibility in industrial settings.
