S-98026A037 0.938" ID x 2.25" OD ASME B18.21.1 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 load distribution with 2.25" outer diameter to prevent surface damage and material embedment
- Superior corrosion resistance through zinc yellow-chromate plating for extended service life in harsh environments
- Maximum strength reliability with Grade 8 classification and Rockwell C38 hardness for heavy-duty applications
- Precision dimensional fit with 0.938" inner diameter ensuring perfect alignment with 7/8" fasteners
- Industry-standard compliance meeting ASME B18.21.1 specifications for consistent performance and interchangeability
- Enhanced durability with thickness range of 0.136-0.192" providing optimal compression and vibration resistance
- Environmental regulation compliance with REACH SVHC requirements for safe industrial use
Professional Applications & Engineering Value
These Grade 8 USS flat washers deliver critical engineering solutions for heavy-duty industrial applications where vibration resistance and load distribution are paramount. The zinc yellow-chromate plated steel construction provides superior corrosion protection in demanding environments, while the Rockwell C38 hardness ensures maintained structural integrity under extreme pressure. Engineered specifically for 7/8" screw compatibility, these washers prevent fastener loosening and distribute clamping force evenly across surfaces. The USS designation guarantees optimal performance in construction, machinery assembly, and structural applications where reliable load-bearing capacity is essential for operational safety and equipment longevity.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 standards with precise dimensional tolerances: 0.938" ID, 2.25" OD, and 0.136-0.192" thickness range. These Grade 8 heavy-duty washers feature Rockwell C38 hardness and are compliant with REACH (EC 1907/2006) regulations (06/14/2023, 235 SVHC). The inch system measurement ensures compatibility with standard industrial fastening systems, while the zinc yellow-chromate plating provides consistent corrosion protection meeting industrial requirements for durability and environmental resistance.
