S-98687A301 2.2 mm ID x 5 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to the black oxide steel finish, extending service life in demanding industrial environments.
• Precise dimensional fit with a 2.2mm inner diameter, ensuring a secure and flush seating for M2 screws without play.
• Optimized load distribution from the 5mm outer diameter, protecting sensitive surfaces from damage and loosening under vibration.
• Reliable international compliance with DIN 125 and ISO 7089 standards, guaranteeing interchangeability and quality in global projects.
• Enhanced environmental safety through RoHS 3 and REACH compliance, making them suitable for regulated industries and sustainable manufacturing.
• Consistent, thin profile (0.3-0.4mm thickness) for applications where space is limited without sacrificing performance.
• Broad industrial compatibility as a metric flat washer, ideal for assembly lines, electronics, and precision machinery requiring M2 fasteners.

Professional Applications & Engineering Value

This M2 flat washer is engineered to solve common issues in precision assemblies, such as surface abrasion, galvanic corrosion, and fastener loosening. The black oxide steel material provides a durable, mildly corrosion-resistant barrier, crucial for industrial settings with exposure to moisture or chemicals. Its compliance with DIN 125 and ISO 7089 ensures exacting dimensional tolerances and consistent performance in automated or high-volume production. The thin, flat design (0.3-0.4mm thickness) makes it ideal for compact electronic devices, small machinery, and metric hardware applications, where it distributes clamp load effectively to prevent damage to soft materials and maintain joint integrity under dynamic stresses.

Specification Summary & Compliance

This washer features precise metric dimensions: 2.2mm ID, 5mm OD, and 0.3-0.4mm thickness, designed for M2 screw sizes. It is manufactured to meet DIN 125 and ISO 7089 standards, ensuring high dimensional accuracy and performance consistency. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.