S-98269A430 4.3 mm ID x 9 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black Oxide 18-8 Stainless Steel, ideal for harsh industrial environments and extending service life.
• Enhanced load distribution due to precise 4.3mm ID and 9mm OD, reducing surface pressure and preventing fastener loosening.
• Exceptional durability from Rockwell B75 hardness, ensuring long-term performance under mechanical stress.
• Guaranteed dimensional accuracy meeting DIN 125 and ISO 7089 standards, providing reliable fit and interchangeability.
• Wide compatibility with M4 screw sizes, simplifying assembly and reducing inventory complexity.
• Eco-friendly compliance with RoHS 3 and REACH regulations, ensuring safe use in regulated industries.
• Cost-effective maintenance through consistent thickness (0.7-0.9 mm), minimizing wear and replacement needs.

Professional Applications & Engineering Value

This M4 flat washer is engineered to address common industrial challenges like corrosion-induced failure and uneven load distribution. Crafted from Black Oxide 18-8 Stainless Steel, it offers robust protection against moisture and chemicals, making it perfect for industrial applications in automotive, machinery, and outdoor equipment. The precise metric dimensions and adherence to DIN 125 and ISO 7089 standards ensure seamless integration with M4 screws, reducing assembly errors and enhancing structural integrity. Its Rockwell B75 hardness provides reliable performance in high-vibration settings, while the corrosion-resistant surface finish prolongs lifespan, lowering total cost of ownership for B2B clients.

Specification Summary & Compliance

This washer features an ID of 4.3 mm, OD of 9 mm, and thickness of 0.7-0.9 mm, designed for M4 screw sizes with standard metric tolerances per DIN 125 and ISO 7089. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring environmental safety and regulatory adherence for global industrial use.