S-92917A130 0.172" ID x 0.438" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from nickel-plated brass construction, ideal for harsh environments and extending service life.
• Excellent electrical conductivity for reliable performance in electrical and electronic assemblies.
• Enhanced durability with a Rockwell B60 hardness, providing reliable load distribution and resistance to deformation.
• Precise fit for No. 8 screws with a 0.172" inner diameter, ensuring secure fastening and vibration resistance.
• Optimal surface coverage from the 0.438" outer diameter, protecting materials and distributing pressure effectively.
• Consistent dimensional stability with a thickness range of 0.029-0.043", facilitating easy installation and uniform performance.
• Full regulatory compliance with RoHS 3 and REACH, meeting strict industrial safety and environmental standards.

Professional Applications & Engineering Value

This nickel-plated brass flat washer is engineered to address common industrial challenges such as galvanic corrosion, electrical grounding requirements, and mechanical wear. The brass core provides inherent electrical conductivity, making it ideal for electrical enclosures, automotive electronics, and communication devices where reliable current flow is critical. The nickel plating significantly enhances corrosion resistance, protecting against moisture, chemicals, and oxidation in demanding environments like marine, HVAC, and outdoor equipment. Its Rockwell B60 hardness ensures the washer maintains its shape under load, preventing loosening and ensuring long-term fastening integrity in vibration-prone applications. This combination of material properties and precise inch dimensions delivers a robust solution for maintenance, manufacturing, and assembly professionals seeking durability and compliance.

Specification Summary & Compliance

This flat washer is manufactured to standard inch dimensions with an inner diameter of 0.172", outer diameter of 0.438", and thickness ranging from 0.029" to 0.043", designed specifically for No. 8 screw size. It features a Rockwell B60 hardness for consistent mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and meets current environmental and safety standards for industrial components.