S-91525A324 0.281" ID x 0.625" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel material, ideal for harsh chemical and marine environments, reducing replacement frequency and maintenance costs.
• Exceptional durability provided by Rockwell B68 hardness, ensuring long-term performance under high-stress industrial applications without deformation.
• Precise dimensional fit with 0.281" ID and 0.625" OD, offering reliable seating for 1/4" screws to prevent loosening and improve assembly integrity.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries and supporting sustainability goals.
• Versatile inch system compatibility for seamless integration with existing machinery and fasteners, minimizing adaptation issues in global operations.
• Optimized load distribution due to flat washer design and consistent thickness (0.110-0.140"), enhancing joint stability and preventing surface damage.
• Broad industrial applicability from heavy-duty equipment to precision assemblies, backed by material properties that resist pitting and oxidation.

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address common industrial challenges such as fastener failure due to corrosion and inconsistent load bearing. Its high chromium and nickel content provides excellent resistance to chlorides and acidic conditions, making it suitable for marine, chemical processing, and food industry applications. The precise 0.281" ID and 0.625" OD dimensions ensure a snug fit for 1/4" screws, reducing vibration-induced loosening and enhancing the longevity of assembled components. With a Rockwell B68 hardness, it maintains structural integrity under repetitive stress, while the flat washer type distributes clamping forces evenly to prevent surface indentation. This combination of material excellence and dimensional accuracy delivers reliable performance in demanding environments, supporting efficient maintenance and reducing downtime.

Specification Summary & Compliance

This flat washer adheres to inch system measurements with an inner diameter of 0.281", outer diameter of 0.625", and thickness ranging from 0.110" to 0.140", designed for use with 1/4" screw sizes. It meets industry standards for hardness at Rockwell B68 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial and export purposes.