S-98688A144 5.3 mm ID x 10 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc plating for longer service life in harsh industrial environments
• Precise dimensional fit with 5.3mm ID and 10mm OD ensuring perfect alignment with M5 fasteners
• Superior load distribution thanks to flat design that prevents surface damage and loosening
• Exceptional mechanical strength with Rockwell C38 hardness for reliable performance under pressure
• Guaranteed interchangeability through compliance with DIN 125 and ISO 7089 international standards
• Environmental responsibility with full RoHS 3 and REACH compliance for safe industrial use
• Consistent thickness control (0.9-1.1mm) ensuring uniform pressure distribution across applications

Professional Applications & Engineering Value

These M5 metric flat washers provide critical engineering solutions across industrial applications where vibration resistance and surface protection are paramount. Manufactured from zinc plated steel, they deliver excellent corrosion protection in machinery assembly, automotive components, and electrical enclosures. The precise 5.3mm internal diameter ensures perfect seating on M5 fasteners, eliminating play while the 10mm outer diameter maximizes bearing surface area. This flat washer design according to DIN 125 and ISO 7089 standards prevents fastener embedding, reduces stress concentration, and maintains clamping force in high-vibration environments. The combination of Rockwell C38 hardness and standardized dimensions makes these washers ideal for repetitive assembly operations requiring consistent performance and reliability.

Specification Summary & Compliance

This M5 flat washer features precise dimensional tolerances per DIN 125 and ISO 7089 standards with internal diameter of 5.3mm, outer diameter of 10mm, and thickness range of 0.9-1.1mm. Manufactured from zinc plated steel with Rockwell C38 hardness rating, these washers meet rigorous international specifications for dimensional accuracy and mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.