S-90360A119 M20 DIN 6331 Flange Nuts

Key Features & Benefits at a Glance

• Exceptional load distribution with a 37mm flange diameter and 6mm thickness to prevent surface damage and maintain joint integrity
• Superior corrosion resistance thanks to the black oxide steel coating, extending service life in harsh industrial environments
• High-strength Class 10 rating ensures reliable performance under heavy loads and high-stress applications
• Secure and precise fit with Class 6H thread tolerance for consistent engagement and reduced risk of loosening
• Easy installation and removal using standard tools with the external hex drive and coarse M20 x 2.5mm thread
• Compliance with DIN 6331 standards guarantees dimensional accuracy and interchangeability in metric assemblies
• Environmental and regulatory safety with RoHS 3 and REACH compliance for use in regulated markets

Professional Applications & Engineering Value

This Class 10 high-strength flange nut is engineered to solve critical challenges in heavy machinery, automotive, and construction assemblies. The black oxide steel construction provides excellent durability against wear and corrosion, while the 37mm flange diameter distributes clamping force evenly, reducing the risk of material deformation and joint failure. Its M20 coarse thread and external hex drive allow for quick, tool-friendly installation in high-vibration environments, ensuring long-term reliability. Compliant with DIN 6331, this nut is ideal for applications requiring metric coarse thread precision and robust performance under dynamic loads.

Specification Summary & Compliance

This flange nut meets DIN 6331 specifications with an M20 thread size, 2.5mm pitch, and Class 6H thread fit for precise tolerance. It features a 30mm width and height, 37mm flange diameter, and 6mm flange thickness. The nut is manufactured from black oxide steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring environmental safety and regulatory adherence.