S-91434A385 0.25" ID x 0.562" 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 black-coated steel construction, extending service life in demanding environments
- Precise dimensional fit for No. 12 screws with 0.25" ID and 0.562" OD, ensuring secure fastening and load distribution
- Enhanced durability through ASME B18.21.1 compliance, guaranteeing consistent performance in mechanical assemblies
- Environmental compliance with RoHS 3 and REACH standards, supporting sustainable and safe industrial operations
- Reliable surface protection that resists degradation, reducing maintenance needs and replacement costs
- Broad industrial compatibility for SAE inch-system applications, offering versatile use across various machinery and equipment
Professional Applications & Engineering Value
These SAE flat washers are engineered with black corrosion-resistant-coated steel to address common industrial challenges such as rust and wear in humid or corrosive settings. The precise 0.25" ID and 0.562" OD dimensions ensure optimal alignment and load distribution for No. 12 screw applications, preventing loosening and surface damage. By meeting ASME B18.21.1 specifications, they provide consistent thickness and flatness, essential for maintaining joint integrity in automotive, machinery, and construction assemblies. This combination of material resilience and standardized design minimizes downtime and enhances the longevity of fastened components, making them a reliable choice for engineers seeking durable, compliant fastening solutions.
Specification Summary & Compliance
This washer features an inner diameter of 0.25", outer diameter of 0.562", and thickness ranging from 0.051" to 0.080", manufactured in accordance with ASME B18.21.1 standards for dimensional accuracy and performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements without the use of restricted hazardous substances.
