S-97310A129 5.3 mm ID x 15 mm OD DIN 7349 Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Precise dimensional compatibility with 5.3mm ID and 15mm OD for perfect fit with M5 screws, preventing loosening and misalignment
• Optimized load distribution with 1.8-2.2mm thickness range, reducing surface pressure and preventing material damage
• Guaranteed mechanical performance through strict DIN 7349 compliance, ensuring consistent quality and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH standards, making them suitable for regulated industries
• Excellent chemical stability from passivation treatment, providing enhanced protection against oxidation and chemical exposure

Professional Applications & Engineering Value

These M5 flat washers deliver exceptional engineering value in demanding applications where corrosion resistance and dimensional precision are critical. Manufactured from passivated 18-8 stainless steel, they effectively solve common industrial challenges such as fastener degradation in humid, chemical, or marine environments. The DIN 7349 standard ensures perfect compatibility with metric M5 screws, providing reliable performance in machinery assembly, electrical enclosures, and structural frameworks. The passivation surface treatment significantly enhances the natural corrosion resistance of stainless steel, making these flat washers ideal for food processing equipment, outdoor installations, and chemical plants where regular maintenance is challenging. Their precise 5.3mm ID and 15mm OD dimensions prevent bolt hole misalignment and ensure even load distribution across connected surfaces.

Specification Summary & Compliance

This metric flat washer features precise dimensions with 5.3mm internal diameter, 15mm outer diameter, and 1.8-2.2mm thickness range, engineered for M5 screw applications. Manufactured in compliance with DIN 7349 standards for dimensional accuracy and mechanical properties. The product fully meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with current SVHC requirements, ensuring environmental safety and regulatory acceptance for industrial use across various sectors.