S-90009A221 M6 x 18 mm DIN 6334 Coupling Nuts

Key Features & Benefits at a Glance

• Exceptional tensile strength with Class 8 rating ensures reliable performance under high-stress conditions, reducing failure risks in critical assemblies.
• Corrosion-resistant zinc plating extends service life by protecting against rust and environmental degradation in harsh industrial settings.
• Precision metric threading (M6x1 coarse) with Class 6H fit guarantees smooth engagement and secure connections, minimizing assembly time and rework.
• Full compliance with DIN 6334 standard provides consistent dimensional accuracy and interchangeability for global engineering projects.
• External hex drive design allows for easy installation and removal using standard tools, enhancing maintenance efficiency.
• REACH and RoHS 3 compliance ensures environmental safety and regulatory adherence for international supply chains.
• Compact 10mm width and 18mm length offers space-saving benefits while maintaining robust coupling capabilities in tight configurations.

Professional Applications & Engineering Value

This zinc-plated steel coupling nut is engineered to address common challenges in industrial fastening, such as vibration loosening and corrosion-induced failures. The fully threaded M6 metric design with coarse 1 mm pitch ensures rapid assembly and high clamping force, ideal for extending threaded rods or joining components in machinery, automotive, and structural frameworks. The Class 8 strength grade and external hex drive provide superior torque resistance, reducing maintenance downtime in heavy-duty applications. By meeting DIN 6334 specifications, it delivers reliable performance in metric-based systems, while the zinc coating combats moisture and chemical exposure, prolonging lifespan in demanding environments like manufacturing plants and outdoor installations.

Specification Summary & Compliance

This coupling nut adheres to DIN 6334 standards with M6x1 mm coarse threading and Class 6H thread fit for precise tolerance. It is manufactured from zinc-plated steel with a Class 8 strength rating, dimensions of 10 mm width and 18 mm length, and right-hand threading. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) for environmental safety, ensuring suitability for regulated industrial and export markets.