S-91434A155 0.406" ID x 0.812" 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 for extended service life in harsh environments
- Precision dimensional fit with 0.406" ID and 0.812" OD ensuring perfect alignment with 3/8" fasteners
- Enhanced load distribution through flat washer design that prevents surface damage and joint loosening
- Industry-standard compliance with ASME B18.21.1 specifications for guaranteed interchangeability
- Environmental responsibility with full RoHS 3 and REACH compliance for global manufacturing applications
- Consistent thickness control (0.051-0.080") providing reliable performance under varying compression loads
- Universal compatibility with SAE inch-system components for seamless integration into existing assemblies
Professional Applications & Engineering Value
These SAE flat washers with black corrosion-resistant coating deliver critical protection against environmental degradation in industrial settings. The steel construction maintains structural integrity while the specialized coating prevents rust formation in humid or chemically aggressive environments. Engineered to ASME B18.21.1 standards, these 3/8" washers provide consistent load distribution that prevents fastener embedding and maintains clamping force in heavy-duty applications. The precise 0.406" ID ensures snug fit with standard fasteners, eliminating play that could compromise joint integrity in machinery, structural assemblies, and outdoor equipment where vibration resistance and long-term reliability are paramount.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 dimensional specifications with inner diameter of 0.406", outer diameter of 0.812", and thickness ranging 0.051-0.080". These flat washers are compatible with 3/8" screw sizes and feature black corrosion-resistant coated steel construction. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for global industrial supply chains and manufacturing operations requiring verified material safety standards.
