S-93661A112 0.109" ID x 0.25" OD SAE Washers

Key Features & Benefits at a Glance

• Superior electrical conductivity for reliable current transfer in demanding electrical assemblies
• Excellent corrosion resistance ensuring long-term performance and component integrity
• Precise dimensional fit with 0.109" ID designed specifically for No. 3 screws, providing secure fastening
• SAE standard compliance guaranteeing consistent quality and interchangeability in inch-system applications
• Durable copper construction offering malleability for effective sealing and vibration resistance
• REACH regulatory compliance ensuring safe use and environmental responsibility in your supply chain
• Optimized thickness range (0.025-0.040") for effective load distribution and space-efficient designs

Professional Applications & Engineering Value

This Copper SAE Flat Washer delivers critical engineering value in applications where electrical conductivity and corrosion resistance are paramount. The pure copper material ensures minimal electrical resistance, making it ideal for electrical connections, grounding systems, and electronic assemblies where reliable current flow is essential. Its natural corrosion-resistant properties prevent degradation in humid or harsh environments, extending service life without additional plating or coatings. The SAE standard flat washer design with precise 0.109" ID for No. 3 screws provides consistent seating and load distribution, preventing loosening from vibration while maintaining electrical contact integrity. This combination of material properties and dimensional precision solves common industrial challenges of maintaining electrical continuity while ensuring mechanical fastening reliability.

Specification Summary & Compliance

This washer features inch system dimensions with 0.109" inner diameter, 0.25" outer diameter, and 0.025-0.040" thickness range specifically engineered for No. 3 screw size applications. Manufactured to SAE standards for flat washers, it ensures proper fit and function in inch-based assemblies. The product is fully REACH compliant (EC 1907/2006) as of June 14, 2023, containing no SVHC above threshold levels, meeting environmental and safety regulations for industrial use.