S-98689A241 1 mm ID x 2.5 mm OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for humid or chemically aggressive environments.
• Precise dimensional fit with 1mm ID and 2.5mm OD, ensuring reliable load distribution and alignment for M0.9 screws.
• Ultra-thin profile (0.2-0.4mm thickness) allows use in compact assemblies without compromising structural integrity.
• Environmental compliance assurance with RoHS 3 and REACH adherence, meeting strict international regulatory standards.
• Durable material performance offering long-term reliability in industrial applications with minimal maintenance needs.
• Broad compatibility with metric fastener systems, simplifying sourcing and integration into global supply chains.

Professional Applications & Engineering Value

This M0.9 metric flat washer is engineered from 18-8 stainless steel to address critical challenges in precision assemblies, such as preventing galvanic corrosion and maintaining clamp load under vibration. Its thin profile and exact 1mm ID and 2.5mm OD dimensions ensure uniform stress distribution, reducing the risk of fastener loosening in small metric washers applications. Commonly used in electronics, medical devices, and miniature machinery, the flat washer provides a reliable barrier against surface damage and enhances joint longevity. The RoHS and REACH compliant status makes it suitable for export-sensitive industries, ensuring environmental safety without sacrificing corrosion resistance or mechanical performance.

Specification Summary & Compliance

This washer adheres to metric dimensional standards with an inner diameter of 1mm, outer diameter of 2.5mm, and thickness range of 0.2-0.4mm, designed for M0.9 screw sizes. It is manufactured from 18-8 stainless steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.