S-98026A115 0.562" ID x 1.375" OD ASME B18.21.1 General Purpose Washers
General Purpose 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 USS flat design (1.375" OD) to prevent surface damage and fastener loosening under heavy loads
- Superior corrosion resistance through black corrosion-resistant coating, extending service life in harsh industrial environments
- High-strength performance with Grade 8 classification and Rockwell C38 hardness for demanding applications
- Precise dimensional fit with 0.562" ID ensuring perfect compatibility with 1/2" fasteners
- Industry-standard compliance meeting ASME B18.21.1 specifications for reliable mechanical properties
- Environmental responsibility with RoHS 3 and REACH compliance for safe, sustainable industrial use
- Optimized thickness range (0.097-0.121") providing consistent performance and reliable spacing
Professional Applications & Engineering Value
These Grade 8 USS flat washers deliver critical engineering solutions for heavy-duty industrial applications where corrosion resistance and structural integrity are paramount. The black corrosion-resistant-coated steel construction provides superior protection against environmental degradation, making them ideal for outdoor equipment, construction machinery, and marine applications. With their USS designation and precise inch system dimensions, these washers offer optimal load distribution across wider surface areas, preventing bolt head embedding and maintaining clamping force in high-vibration environments. The combination of Rockwell C38 hardness and Grade 8 strength classification ensures reliable performance in structural assemblies, heavy equipment manufacturing, and industrial maintenance where failure is not an option.
Specification Summary & Compliance
Manufactured to exact ASME B18.21.1 specifications with dimensional precision including 0.562" ID, 1.375" OD, and thickness range of 0.097-0.121". These USS flat washers meet Grade 8 strength requirements with Rockwell C38 hardness verification. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage across global industrial markets.
