S-98026A029 0.312" ID x 0.734" 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
- Superior corrosion resistance with zinc yellow-chromate plating for extended service life in harsh industrial environments
- Exceptional load distribution through precise USS flat design (0.734" OD) to prevent surface damage and fastener loosening
- Maximum strength reliability with Grade 8 classification and Rockwell C38 hardness for heavy-duty applications
- Perfect fit compatibility with 1/4" screws through precise 0.312" inner diameter manufacturing
- Regulatory compliance assurance meeting ASME B18.21.1 standards and REACH environmental requirements
- Dimensional consistency with thickness range of 0.051-0.080" for uniform performance across assemblies
- Enhanced safety margins through high-strength steel construction suitable for critical mechanical fastening systems
Professional Applications & Engineering Value
These Grade 8 USS flat washers deliver critical engineering value in demanding applications where vibration resistance and load distribution are paramount. The zinc yellow-chromate plated steel construction provides superior corrosion protection, making these 1/4" washers ideal for outdoor equipment, heavy machinery, and structural assemblies exposed to environmental elements. The USS designation ensures optimal surface contact and pressure distribution, preventing joint failure in high-stress applications. With Rockwell C38 hardness and Grade 8 strength classification, these industrial washers maintain integrity under extreme mechanical loads, reducing maintenance frequency and enhancing overall system reliability in construction, manufacturing, and automotive sectors.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 specifications with precise dimensional tolerances: 0.312" inner diameter, 0.734" outer diameter, and thickness range of 0.051-0.080". These inch system washers feature zinc yellow-chromate plated steel construction with Rockwell C38 hardness and Grade 8 strength classification. Full compliance with REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety standards are met for industrial applications.
