S-94744A491 1.188" ID x 2" 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 protection with zinc plating that extends service life in demanding industrial environments
- Precise dimensional fit with 1.188" ID specifically engineered for 1 1/8" screw sizes to prevent misalignment
- Optimal load distribution with 2" OD design that minimizes surface pressure and prevents material damage
- Consistent performance maintained through controlled thickness range of 0.090-0.112" for reliable seating
- Industry-standard compliance with ASME B18.21.1 ensuring interchangeability and mechanical reliability
- Environmental responsibility with full RoHS 3 and REACH compliance for global supply chain acceptance
- Durable steel construction providing excellent strength-to-weight ratio for heavy-duty applications
Professional Applications & Engineering Value
These zinc-plated steel flat washers deliver critical engineering solutions where corrosion resistance and dimensional precision are paramount. The ASME B18.21.1 compliant design ensures perfect compatibility with 1 1/8" screw sizes, eliminating installation issues in industrial machinery assembly, structural steel connections, and heavy equipment maintenance. The zinc plating creates a sacrificial barrier that actively fights rust formation in humid or outdoor environments, while the 2" OD provides essential bearing surface to prevent fastener embedment in soft materials. This combination of inch system specifications and protective coating makes these flat washers ideal for applications requiring long-term reliability under static loads and environmental exposure.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 standards with precise dimensions: 1.188" ID, 2" OD, and 0.090-0.112" thickness range. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations (updated 01/17/2023, 233 SVHC). The zinc-plated steel construction meets industrial requirements for corrosion protection while maintaining mechanical integrity in standard flat washer applications.
