S-91166A280 10.5 mm ID x 20 mm OD DIN 125; ISO 7089 General Purpose Washers

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance: Zinc plating provides a protective barrier, extending service life in humid or outdoor environments.
• Superior Load Distribution: The 20mm outer diameter effectively spreads pressure, preventing surface damage to assembled materials.
• Precision Fit for M10 Screws: 10.5mm inner diameter ensures a secure, reliable fit, minimizing loosening from vibration.
• Exceptional Mechanical Strength: Rockwell B75 hardness offers excellent durability and resistance to deformation under high stress.
• Guaranteed Dimensional Consistency: Tight thickness tolerance (1.8-2.2mm) ensures uniform performance and ease of installation.
• Global Standard Compliance: Manufactured to DIN 125 and ISO 7089 standards, ensuring interchangeability and reliability in international projects.
• Safe for Regulated Industries: RoHS 3 and REACH compliance guarantees the absence of hazardous substances, meeting strict environmental and safety directives.

Professional Applications & Engineering Value

This M10 flat washer is engineered from zinc plated steel to address common industrial challenges such as galvanic corrosion, joint failure, and component wear. Its robust construction and Rockwell B75 hardness make it ideal for heavy-duty applications in machinery assembly, automotive frameworks, and construction fixtures, where consistent clamping force and vibration resistance are critical. The precise metric dimensions and adherence to DIN 125 and ISO 7089 standards ensure seamless integration with other M10 screw fasteners, reducing installation time and improving the longevity of mechanical systems. This washer provides a cost-effective solution for maintaining structural integrity in demanding environments.

Specification Summary & Compliance

This washer features an ID of 10.5mm, OD of 20mm, and a thickness of 1.8-2.2mm, manufactured to the dimensional precision of DIN 125 and ISO 7089 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material quality for global industrial use.