S-98035A101 3.2 mm ID x 8 mm OD Oversized Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide steel surface treatment, ideal for humid or demanding industrial environments.
• Precise fit for M3 screws with 3.2mm inner diameter, ensuring secure fastening and reduced vibration loosening.
• Superior load distribution thanks to 8mm outer diameter, minimizing surface damage and extending assembly lifespan.
• Consistent performance under pressure with Rockwell 15N80 hardness, providing reliable mechanical strength.
• Broad compatibility with metric system components, facilitating easy integration into existing designs.
• Environmental and safety compliance with RoHS 3 and REACH standards, meeting strict industry regulations.
• Durable construction with thickness ranging from 1.5 to 2.4mm, offering flexibility for various spacing needs.

Professional Applications & Engineering Value

These M3 metric flat washers are engineered to address common industrial challenges such as fastener corrosion, uneven load distribution, and regulatory compliance. Made from black-oxide steel, they provide a protective layer that resists rust and wear in harsh conditions, from automotive assemblies to machinery frames. The precise 3.2mm ID and 8mm OD dimensions ensure a snug fit on M3 screws, preventing misalignment and reducing stress concentrations. This design enhances the longevity of industrial fastening solutions, making them suitable for applications in electronics, manufacturing, and construction where reliability and corrosion resistance are critical. By adhering to strict standards, these washers deliver consistent performance, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This flat washer features a metric system design with an inner diameter of 3.2mm, outer diameter of 8mm, and thickness between 1.5-2.4mm, ensuring dimensional accuracy for M3 screw sizes. It complies with RoHS 3 (2015/863/EU) under exemption 6(a) for lead in steel and REACH (EC 1907/2006) standards, confirming environmental safety. The material, black-oxide steel, meets hardness specifications of Rockwell 15N80, providing reliable performance in various industrial settings.