S-98363A115 13.5 mm ID x 44 mm OD DIN 440-R Oversized Washers

Key Features & Benefits at a Glance

• Enhanced Load Distribution with 44mm outer diameter to prevent surface damage and maintain joint integrity under high stress
• Precision M12 Screw Compatibility featuring 13.5mm inner diameter for secure fit and vibration resistance in dynamic applications
• Superior Material Durability through Rockwell B50 hardness steel construction resisting deformation under repeated loading
• Regulatory Compliance Assurance meeting RoHS 3 and REACH environmental standards for global industrial deployment
• Standardized Performance adhering to DIN 440-R specifications ensuring interchangeability and reliability across metric systems
• Optimized Thickness Range (3.4-4.6mm) providing consistent spacing and compression resistance in assembly configurations
• Corrosion-Resistant Foundation with steel material offering long-term service life in demanding industrial environments

Professional Applications & Engineering Value

This M12 flat washer delivers critical engineering solutions through its DIN 440-R compliant design and steel construction. The precisely calibrated 13.5mm ID ensures perfect alignment with M12 screws while the 44mm OD creates an optimal bearing surface to distribute clamping forces, preventing material embedment in soft substrates and bolt head rotation in hardened surfaces. Manufactured from Rockwell B50 hardness steel, it maintains dimensional stability under extreme compression, making it ideal for heavy-duty industrial applications including machinery assembly, structural steel connections, and automotive components where vibration resistance and long-term reliability are paramount. The metric dimensions and standardized profile ensure seamless integration into European-engineered equipment and global manufacturing systems.

Specification Summary & Compliance

Manufactured to DIN 440-R standards with precision dimensions: 13.5mm inner diameter, 44mm outer diameter, and 3.4-4.6mm thickness range. Constructed from steel with Rockwell B50 hardness for consistent performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for international industrial applications requiring strict material restrictions.