S-91081A127 0.25" ID x 0.562" OD USS Washers

Key Features & Benefits at a Glance

• Superior Load Distribution - USS standard design ensures even pressure spread, preventing surface damage and extending assembly life
• Precision Fit for No. 10 Screws - 0.25" inner diameter provides exact compatibility with standard No. 10 fasteners
• Enhanced Bearing Surface - 0.562" outer diameter creates optimal contact area for improved stability
• Durable Steel Construction - High-quality steel material offers reliable strength and corrosion resistance
• Versatile Thickness Range - 0.036-0.065" thickness accommodates various compression requirements
• Regulatory Compliance Assurance - Meets RoHS 3 and REACH standards for safe industrial use
• USS Standard Compatibility - Manufactured to USS specifications for consistent performance across applications

Professional Applications & Engineering Value

This USS flat washer delivers critical engineering value in industrial fastening systems where load distribution and surface protection are paramount. The steel construction provides the necessary durability to withstand vibration and mechanical stress in machinery assembly, automotive applications, and structural frameworks. With its precise 0.25" inner diameter specifically engineered for No. 10 screws, this washer eliminates play and ensures secure fastening while the 0.562" outer diameter creates an optimal bearing surface that prevents embedment and distributes clamping force effectively. The inch measurement system compatibility makes it ideal for North American industrial standards, while the controlled thickness range of 0.036-0.065" accommodates various compression needs without compromising performance.

Specification Summary & Compliance

This flat washer features precise dimensional specifications including 0.25" inner diameter, 0.562" outer diameter, and thickness range of 0.036-0.065" designed specifically for No. 10 screw size applications. Manufactured to USS standard requirements, this washer ensures consistent performance and compatibility. 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 and safety regulations for industrial components.