S-98466A005 0.15" ID x 0.375" OD Finishing Washers

Key Features & Benefits at a Glance

• Flush surface installation with an 82° countersink angle for seamless integration and reduced snagging in tight spaces
• Superior corrosion resistance provided by 18-8 Stainless Steel, ideal for humid or chemically aggressive environments
• Precise dimensional fit with 0.15" ID and 0.375" OD ensuring secure alignment with No. 4 screws
• Enhanced load distribution due to the flat outer design, minimizing surface stress and material deformation
• Reliable chemical compliance with RoHS 3 and REACH standards, safe for electronics and consumer-facing applications
• Durable material integrity from 18-8 Stainless Steel, offering long-term performance without rust or degradation
• Versatile inch-system compatibility for easy integration into existing North American machinery and assemblies

Professional Applications & Engineering Value

This 82° countersunk washer is engineered to address common industrial challenges such as protruding fastener heads and corrosion-induced failures. Made from 18-8 Stainless Steel, it provides excellent resistance to oxidation and chemical exposure, making it suitable for marine equipment, food processing machinery, and outdoor enclosures. The precise 0.15" ID and 0.375" OD ensure a snug fit with No. 4 screws, preventing loosening under vibration while the countersink angle allows for flush mounting—critical in applications requiring aerodynamic surfaces or easy cleaning. Its design eliminates gaps that trap contaminants, reducing maintenance needs and extending assembly lifespan in demanding settings.

Specification Summary & Compliance

This washer features inch-system dimensions with an internal diameter of 0.15" and outer diameter of 0.375", tailored for No. 4 screw sizes. It adheres to standard countersink geometry with an 82° angle for consistent seating. Manufactured from 18-8 Stainless Steel, it meets industry expectations for material quality and dimensional accuracy. 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 suitable for global supply chains.