S-91635A190 3.2 mm ID x 7 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass material, ensuring long-term reliability in humid or chemically aggressive environments
• Excellent electrical conductivity makes these washers ideal for electrical applications where grounding or current transfer is required
• Precise dimensional accuracy with 3.2mm ID and 7mm OD ensures perfect fit with M3 screws, preventing loosening and maintaining assembly integrity
• International standard compliance with both DIN 125 and ISO 7089 guarantees interchangeability and quality consistency across global projects
• Environmental responsibility with RoHS 3 compliance, meeting strict EU regulations for hazardous substance restrictions
• Optimized load distribution through precise flat surface design, protecting components from damage during tightening
• Consistent thickness control between 0.4-0.6mm provides reliable spacing and vibration resistance in assembled applications

Professional Applications & Engineering Value

These M3 brass flat washers deliver exceptional value in applications where both corrosion resistance and electrical conductivity are critical. The brass material construction prevents galvanic corrosion when used with compatible fasteners, making them ideal for electrical enclosures, marine equipment, and plumbing systems exposed to moisture. The precise metric dimensions and DIN 125 ISO 7089 compliance ensure these washers provide consistent performance in automated assembly processes, reducing installation time and preventing component damage. Their flat washer design effectively distributes clamping force across wider surfaces, protecting delicate materials and finished surfaces from indentation while maintaining secure fastening in vibration-prone environments.

Specification Summary & Compliance

These metric washers feature precise dimensions with 3.2mm inner diameter, 7mm outer diameter, and thickness ranging 0.4-0.6mm, designed specifically for M3 screw applications. Manufactured to DIN 125 and ISO 7089 standards for dimensional accuracy and quality assurance. The washers are RoHS 3 (2015/863/EU) compliant, meeting current environmental regulations for restricted hazardous substances. The brass construction provides inherent corrosion resistance without additional surface treatments, maintaining consistent performance across industrial applications.