S-91100A321 6.5 mm ID x 17.7 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Superior load distribution with precise 6.5mm ID and 17.7mm OD dimensions to prevent fastener loosening and surface damage
• Enhanced corrosion resistance through zinc-plated steel construction for extended service life in harsh industrial environments
• High-strength compatibility specifically engineered for use with Class 10.9 fasteners in demanding applications
• Precision manufacturing according to DIN 9021 standards ensuring consistent 1.4-1.8mm thickness and reliable performance
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use across global markets
• Optimal dimensional stability with metric specifications for seamless integration into international engineering projects
• Versatile industrial application across machinery, equipment assembly, and structural fastening systems

Professional Applications & Engineering Value

This M6 flat washer delivers critical engineering solutions through its zinc-plated steel construction and DIN 9021 compliance. The precisely controlled dimensions (6.5mm ID × 17.7mm OD) and 1.4-1.8mm thickness range ensure optimal surface contact and load distribution, preventing joint failure in high-vibration environments. The Class 10.9 compatibility makes it ideal for heavy-duty applications where fastener integrity is paramount. The zinc plating provides essential corrosion protection, extending component life in industrial settings while maintaining electrical conductivity. These metric washers solve common engineering challenges including surface marring, bolt loosening, and premature fastener failure, making them indispensable in machinery assembly, automotive manufacturing, and structural steel connections where reliability and compliance with European standards are required.

Specification Summary & Compliance

This flat washer features precise metric dimensions with 6.5mm inner diameter, 17.7mm outer diameter, and thickness ranging from 1.4-1.8mm. Manufactured to DIN 9021 specifications for dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance. Specifically designed for use with M6 fasteners rated Class 10.9, providing reliable performance in high-strength applications across various industrial sectors.