S-91455A420 5.3 mm ID x 10 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to the zinc-flake coating, extending service life in harsh industrial environments.
• Exceptional durability and load distribution provided by Rockwell B91 hardness, minimizing wear and deformation under pressure.
• Precise dimensional fit for M5 screws with a 5.3 mm inner diameter, ensuring secure and stable fastening assemblies.
• Reliable performance in automated applications due to compliance with DIN 125 and ISO 7089 standards for consistent quality.
• Enhanced environmental and workplace safety through full compliance with RoHS 3 and REACH regulations.
• Optimal surface pressure distribution with a 10 mm outer diameter, protecting components from damage.
• Consistent thickness (0.9-1.1 mm) for uniform performance and ease of installation in high-volume production.

Professional Applications & Engineering Value

This M5 metric flat washer is engineered to address common industrial challenges such as component loosening, surface abrasion, and corrosion in demanding environments. Made from zinc-flake coated steel, it provides a robust barrier against moisture and chemicals, making it ideal for automotive assemblies, machinery, and outdoor equipment. The precise dimensions and adherence to DIN 125 and ISO 7089 standards ensure reliable fit and performance in automated production lines, reducing downtime and maintenance costs. Its high Rockwell B91 hardness offers excellent resistance to deformation, ensuring long-term integrity in high-stress applications, from electrical enclosures to structural frameworks.

Specification Summary & Compliance

This washer features precise dimensions: Inner Diameter of 5.3 mm, Outer Diameter of 10 mm, and Thickness of 0.9-1.1 mm, designed for M5 screw size with standard fit. It conforms to DIN 125 and ISO 7089 specifications, ensuring dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial sectors without hazardous substances.