S-92918A130 0.172" ID x 0.438" OD Finishing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with black zinc-plated brass construction, ideal for harsh industrial environments and outdoor applications.
• Perfect flush mounting ensured by the 82° countersink angle, providing a smooth, professional finish without protrusions.
• Precise fit for No. 6 screws with 0.172" inner diameter, reducing installation time and preventing fastener loosening.
• Enhanced load distribution from the 0.438" outer diameter, minimizing surface damage and extending assembly lifespan.
• Compliance with global standards including RoHS 3 and REACH, ensuring safe, sustainable use in regulated industries.
• Durable brass material offering excellent machinability and long-term reliability in mechanical fastening systems.
• Wide compatibility with inch-based systems, simplifying sourcing for North American and international projects.

Professional Applications & Engineering Value

These 82° countersunk washers are engineered to solve common issues in flush mounting applications, such as uneven surfaces and fastener head protrusion. Made from black zinc-plated brass, they combine the natural corrosion resistance of brass with an additional protective coating, making them ideal for industrial and commercial settings exposed to moisture or chemicals. The precise 0.172" ID and 0.438" OD ensure a secure fit for No. 6 screws, reducing vibration-induced failures and improving aesthetic outcomes in assemblies like machinery, electronics, and architectural fixtures. By enabling smooth, low-profile installations, these washers enhance both performance and durability in demanding environments.

Specification Summary & Compliance

This washer features an 82° countersink angle with inner diameter of 0.172" and outer diameter of 0.438", designed for No. 6 screw compatibility in inch measurement systems. It adheres to standard industrial tolerances for precise fit and is manufactured from black zinc-plated brass for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for global supply chains.