S-90108A038 1.062" ID x 2.5" 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 load distribution with 2.5" outer diameter to prevent surface damage and embedment in softer materials
- Enhanced corrosion resistance through zinc plating for extended service life in demanding industrial environments
- Precise 1.062" inner diameter fit ensures secure seating on 1" screws without binding or misalignment
- Robust zinc-plated steel construction provides excellent strength and durability for heavy-duty applications
- ASME B18.21.1 compliance guarantees consistent dimensional accuracy and reliable performance
- Optimal thickness range (0.136-0.192") maintains proper clamping force while accommodating surface variations
- Full regulatory compliance with RoHS 3 and REACH standards for safe global industrial use
Professional Applications & Engineering Value
These USS flat washers deliver critical engineering solutions where load distribution and surface protection are paramount. The zinc-plated steel construction provides exceptional corrosion resistance in harsh environments, while the generous 2.5" outer diameter effectively distributes clamping forces to prevent damage to assembled components. Engineered specifically for 1" screw applications, these industrial washers maintain structural integrity under heavy loads and vibration, making them ideal for construction equipment, structural steel connections, heavy machinery, and infrastructure projects where reliability cannot be compromised. The precise dimensional control ensures consistent performance across multiple installations.
Specification Summary & Compliance
Manufactured to ASME B18.21.1 standards with dimensional specifications including 1.062" inner diameter, 2.5" outer diameter, and thickness range of 0.136-0.192". These USS flat washers are produced from zinc-plated steel in the inch measurement system and comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet current industrial safety and environmental requirements for global distribution and use.
