S-91100A349 8.5 mm ID x 23.7 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh industrial environments
• Optimal load distribution with precise 23.7mm OD and 1.8-2.2mm thickness, preventing surface damage and fastener loosening
• Enhanced vibration resistance through DIN 9021 compliant design, maintaining joint integrity in dynamic applications
• Perfect compatibility with Class 8.8 fasteners and M8 screw sizes, ensuring reliable performance in high-strength assemblies
• Regulatory compliance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Precision dimensional accuracy with 8.5mm ID and metric system specifications, guaranteeing consistent fit and function
• Durable steel core providing structural integrity while maintaining cost-effectiveness for volume applications

Professional Applications & Engineering Value

This M8 zinc-plated steel flat washer delivers critical engineering solutions for industrial fastening systems where corrosion resistance and load distribution are paramount. The zinc-plated steel construction creates a protective barrier against moisture and chemical exposure, significantly reducing maintenance requirements in manufacturing equipment, automotive assemblies, and outdoor structures. Engineered to DIN 9021 standards, the washer's precise dimensions (8.5mm ID × 23.7mm OD) and controlled thickness (1.8-2.2mm) ensure uniform pressure distribution across mating surfaces, preventing stress concentration that can lead to component failure. When paired with Class 8.8 fasteners, this metric flat washer effectively dampens vibration and prevents loosening in high-stress applications, making it ideal for machinery, structural frameworks, and heavy equipment where reliability cannot be compromised.

Specification Summary & Compliance

This precision flat washer features metric dimensions with 8.5mm inner diameter, 23.7mm outer diameter, and 1.8-2.2mm thickness range, manufactured to DIN 9021 specifications for dimensional accuracy and performance consistency. The product is specifically designed for use with M8 screw sizes and Class 8.8 fastener strength grade applications. Compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across international markets while maintaining the highest quality standards for industrial washers.