S-92538A461 3.2 mm ID x 12 mm OD Finishing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extending component lifespan.
• Perfect flush seating ensured by the 100° countersink angle, preventing snagging and providing a smooth, professional finish.
• Precise fit for M3 screws with a 3.2mm internal diameter, ensuring secure fastening and reducing the risk of loosening.
• Excellent load distribution from the 12mm outer diameter, minimizing surface pressure and preventing material damage.
• Reliable mechanical strength with a Rockwell B83 hardness, offering consistent performance under stress and vibration.
• Strict dimensional control with a thickness range of 2.2-2.8mm, guaranteeing compatibility and ease of installation in metric assemblies.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this M3 countersunk washer solves critical issues like fastener head protrusion and material degradation. The 18-8 stainless steel provides excellent corrosion resistance, making it suitable for outdoor equipment, marine hardware, and chemical processing plants where moisture and corrosive agents are prevalent. The precise 100° countersink angle ensures a seamless fit with corresponding screw heads, eliminating gaps that could trap debris or compromise structural integrity. Its metric dimensions and consistent thickness facilitate quick assembly in machinery, electronics, and automotive systems, reducing installation time and enhancing overall reliability. By combining durable materials with exacting precision engineering, this washer delivers long-term value by preventing joint failure and minimizing maintenance needs.

Specification Summary & Compliance

This countersunk washer adheres to standard metric system specifications with an ID of 3.2 mm, OD of 12 mm, and thickness of 2.2-2.8 mm, designed for M3 screw size. It meets industry manufacturing tolerances for consistent 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 safe for use in various global markets.