S-98023A111 0.125" ID x 0.312" OD ASME B18.21.1 SAE Washers
SAE 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 yellow-chromate plating that extends service life in harsh industrial environments
- Exceptional load distribution from the flat washer design that prevents surface damage and maintains joint integrity
- Precision dimensional accuracy with 0.125" ID and 0.312" OD ensuring perfect fit for No. 4 screw applications
- Heavy-duty performance backed by Grade 8 classification for demanding mechanical assemblies
- Guaranteed interchangeability through strict adherence to ASME B18.21.1 manufacturing standards
- Environmental compliance assurance with RoHS 3 and REACH compliance for global supply chain compatibility
- Optimized thickness range (0.028-0.036") providing consistent performance across various clamping applications
Professional Applications & Engineering Value
These Grade 8 SAE flat washers deliver critical engineering solutions where corrosion resistance and load distribution are paramount. The zinc yellow-chromate plated steel construction provides superior protection against oxidation and chemical exposure, making them ideal for automotive, machinery, and outdoor equipment applications. Their precise 0.125" ID and 0.312" OD dimensions ensure perfect alignment with No. 4 screws, preventing loosening and maintaining bolt tension under vibration and thermal cycling. The flat washer design effectively distributes clamping force across wider surfaces, protecting soft materials and preventing embedding in critical assemblies where surface preservation is essential for maintenance and disassembly operations.
Specification Summary & Compliance
Manufactured to exact ASME B18.21.1 specifications with dimensional precision including 0.125" inner diameter, 0.312" outer diameter, and thickness ranging 0.028-0.036". These SAE flat washers meet Grade 8 classification requirements and comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring they contain no restricted substances and are suitable for global industrial applications requiring stringent regulatory compliance.
