S-94744A446 1.062" ID x 2.5" 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 resistance through zinc plating, extending service life in harsh industrial environments
- Precise dimensional fit with 1.062" ID and 2.5" OD ensuring reliable performance with 1" screws
- Enhanced load distribution with optimal thickness (0.146-0.174") to prevent surface damage and loosening
- Industry-standard compliance with ASME B18.21.1 for guaranteed dimensional accuracy and interchangeability
- Environmental responsibility through RoHS 3 and REACH compliance, meeting global regulatory requirements
- Heavy-duty steel construction providing consistent strength and durability under high-pressure applications
- Broad compatibility with inch-system fasteners commonly used in North American industrial equipment
Professional Applications & Engineering Value
This zinc-plated steel flat washer delivers critical engineering solutions where corrosion resistance and dimensional precision are paramount. The zinc plating creates a protective barrier against moisture and chemicals, significantly reducing maintenance frequency in outdoor equipment, marine applications, and manufacturing facilities. With its ASME B18.21.1 compliance, this flat washer ensures perfect fitment with standard 1" fasteners, eliminating assembly issues and providing consistent load distribution across joint surfaces. The optimized 2.5" outer diameter and controlled thickness range prevent embedment into soft materials while maintaining bolt tension in vibrating machinery, making it ideal for construction, automotive, and heavy equipment applications requiring reliable, long-term performance.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 standards with precise dimensions: 1.062" inner diameter, 2.5" outer diameter, and 0.146-0.174" thickness range. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations (updated January 17, 2023). Designed specifically for use with 1" screw sizes in inch measurement system applications.
