S-91100A325 10.6 mm ID x 29.7 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Enhanced load distribution with 29.7mm OD and 10.6mm ID to prevent surface damage and maintain joint integrity under high stress
• Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh industrial environments
• Reliable compatibility with Class 10.9 high-strength fasteners, ensuring secure and durable assemblies
• Precision-engineered dimensions (2.3-2.7mm thickness) for consistent performance and easy installation in metric applications
• Compliance with DIN 9021 standards guarantees dimensional accuracy and mechanical reliability
• Environmental and safety adherence with RoHS 3 and REACH compliance, supporting sustainable and safe manufacturing practices
• Versatile industrial use due to robust steel material, suitable for heavy-duty machinery and structural applications

Professional Applications & Engineering Value

This M10 zinc-plated steel flat washer is engineered to address common industrial challenges such as fastener loosening, surface indentation, and corrosion-induced failures. The zinc plating provides a protective barrier against moisture and chemicals, significantly enhancing corrosion resistance in outdoor or aggressive environments. Its precise dimensions, conforming to DIN 9021, ensure optimal load distribution across mating surfaces, reducing stress concentrations and preventing damage to components. Ideal for use with Class 10.9 fasteners in heavy machinery, automotive assemblies, and construction projects, this washer improves joint reliability and extends the lifespan of metric fastener systems. By minimizing maintenance needs and assembly errors, it delivers consistent performance in demanding industrial applications, from manufacturing plants to infrastructure developments.

Specification Summary & Compliance

This flat washer meets DIN 9021 specifications for dimensional accuracy, with an inner diameter of 10.6 mm, outer diameter of 29.7 mm, and thickness ranging from 2.3 to 2.7 mm. It is designed for M10 screw sizes and compatible with Class 10.9 fastener strength grades. The product is manufactured from zinc-plated steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial uses.