S-91525A316 0.156" ID x 0.438" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
• Precise fit for No. 6 screws with 0.156" inner diameter, ensuring secure fastening and load distribution
• Enhanced durability from Rockwell B68 hardness, providing reliable performance under mechanical stress
• Optimal surface coverage with 0.438" outer diameter, protecting materials from damage and loosening
• Consistent thickness tolerance (0.050-0.080") for uniform pressure and vibration resistance in assemblies
• Compliance with strict regulations, meeting RoHS 3 and REACH standards for safe, sustainable use
• Versatile inch system compatibility, simplifying integration with existing industrial equipment and standards

Professional Applications & Engineering Value

This 316 stainless steel flat washer delivers exceptional corrosion resistance, making it indispensable in aggressive settings like chemical processing, marine, and offshore applications. Its Rockwell B68 hardness ensures it withstands high loads and repetitive stress without deforming, while the precise 0.156" ID and 0.438" OD provide optimal bearing surface for No. 6 screws, reducing the risk of fastener failure. Engineers value its ability to extend equipment lifespan in demanding industrial environments, thanks to the material's resilience against pitting and crevice corrosion. The washer's inch-based dimensions and tight thickness control further support reliable performance in machinery, automotive, and structural assemblies, minimizing maintenance needs.

Specification Summary & Compliance

This flat washer adheres to standard inch measurements with an inner diameter of 0.156", outer diameter of 0.438", and thickness range of 0.050-0.080", designed specifically for No. 6 screw sizes. It meets industry hardness standards at Rockwell B68 and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for global supply chains.