S-93661A129 1.25" ID x 2.25" OD SAE Washers

Key Features & Benefits at a Glance

• Superior electrical and thermal conductivity for reliable performance in electrical and heat transfer applications
• Excellent corrosion resistance ensuring long-term durability in harsh industrial environments
• Precise SAE standard dimensions (1.25" ID, 2.25" OD) for perfect fit with 1 1/8" screws and consistent performance
• Optimal load distribution with 0.108-0.160" thickness range to prevent surface damage and loosening
• Compliance with major environmental regulations including RoHS 3 and REACH for safe, sustainable usage
• Reliable sealing capability for fluid and gas systems due to copper's malleable properties
• Wide industrial compatibility with inch system fasteners for easy integration into existing assemblies

Professional Applications & Engineering Value

These copper flat washers deliver exceptional engineering value through their unique material properties and SAE standard design. The high-purity copper construction provides outstanding electrical conductivity, making them ideal for grounding applications, electrical panels, and power distribution systems where reliable current flow is critical. Their natural corrosion resistance ensures long-term performance in challenging environments including marine, chemical processing, and outdoor installations. The precise flat washer design with consistent thickness distribution prevents fastener loosening under vibration while providing excellent surface protection. These washers are particularly valuable in electrical assembly applications where both conductivity and environmental compliance are mandatory requirements.

Specification Summary & Compliance

This SAE standard copper flat washer features precise dimensional specifications including 1.25" inner diameter, 2.25" outer diameter, and thickness ranging from 0.108" to 0.160" for compatibility with 1 1/8" screw sizes. Manufactured to SAE standards within the inch measurement system, these washers ensure proper fit and function in industrial applications. The product is fully RoHS 3 (2015/863/EU) compliant and meets REACH (EC 1907/2006) requirements including the latest SVHC updates, providing assurance of environmental safety and regulatory compliance for global industrial use.