S-91081A151 0.25" ID x 0.562" OD ASME B18.21.1 USS Washers
USS 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 chrome plating that protects against rust and extends service life in demanding environments
- Precise load distribution thanks to USS flat design that prevents fastener embedding and protects sensitive surfaces
- Reliable dimensional accuracy with 0.25" ID and 0.562" OD ensuring perfect fit for No. 10 screws
- Enhanced assembly durability through chrome plated steel construction that withstands mechanical stress
- Industry-standard compliance meeting ASME B18.21.1 specifications for consistent performance and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated applications
- Optimized thickness range (0.036-0.065") providing flexibility for various clamping requirements
Professional Applications & Engineering Value
This USS flat washer delivers exceptional engineering value through its chrome plated steel construction, specifically designed to address common industrial challenges. The chrome plating provides superior corrosion resistance, making it ideal for applications exposed to moisture, chemicals, or outdoor elements where standard washers would deteriorate. The flat washer design ensures even load distribution across mating surfaces, preventing damage to soft materials and maintaining joint integrity under vibration or thermal cycling. Engineered to ASME B18.21.1 standards, this washer guarantees dimensional precision for No. 10 screw applications in machinery, equipment assembly, and structural frameworks. Its inch system measurement compatibility makes it perfect for North American industrial applications requiring reliable, standardized components that maintain long-term performance in demanding mechanical environments.
Specification Summary & Compliance
This USS flat washer features precise dimensional specifications with 0.25" inner diameter, 0.562" outer diameter, and thickness ranging from 0.036" to 0.065". Manufactured to ASME B18.21.1 standards, it ensures consistent quality and interchangeability. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (updated 06/14/2023, 235 SVHC), meeting the latest environmental regulations for industrial components.
