S-91100A327 13.1 mm ID x 36.6 mm OD DIN 9021 Oversized Washers

Key Features & Benefits at a Glance

• Enhanced load distribution with 36.6mm outer diameter to prevent surface damage and maintain joint integrity under Class 10.9 fastener loads
• Superior corrosion resistance through zinc plating, extending service life in humid or industrial environments
• Precise dimensional accuracy with 13.1mm inner diameter ensuring perfect fit for M12 fasteners without play or misalignment
• Reliable performance in heavy-duty applications due to robust steel construction and compliance with DIN 9021 engineering standards
• Consistent thickness control (2.7-3.3mm) for uniform pressure distribution and vibration resistance
• Environmental compliance assurance with RoHS 3 and REACH adherence for safe use in regulated industries
• Interchangeable metric system compatibility for seamless integration with global machinery and equipment

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these M12 flat washers solve critical challenges in machinery assembly, structural steel connections, and automotive components. The zinc-plated steel construction provides essential corrosion resistance while maintaining structural integrity under high vibration environments. Compliance with DIN 9021 ensures dimensional precision that prevents fastener loosening and distributes clamping forces evenly across Class 10.9 fastener interfaces. The optimized 36.6mm OD creates an ideal bearing surface that protects soft materials from indentation while the 13.1mm ID maintains precise alignment with M12 fasteners, eliminating installation issues in high-volume production environments.

Specification Summary & Compliance

Manufactured to DIN 9021 standards with metric dimensions (13.1mm ID, 36.6mm OD, 2.7-3.3mm thickness) compatible with M12 fasteners and Class 10.9 strength grade applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance management. The zinc-plated steel construction meets industrial requirements for corrosion protection and mechanical performance in standardized metric flat washer applications.