S-93355A530 M3 x 9 mm Coupling Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments
• Maximum torque transmission capability through external hex drive design for secure installation and removal
• Reliable thread engagement with fully threaded right-hand configuration ensuring consistent connection strength
• Precision thread fit with Class 6H tolerance for smooth assembly and reduced cross-threading risks
• Optimized for metric systems with M3 x 0.5 mm coarse pitch threading for quick installation in time-sensitive operations
• Compact dimensional profile (6mm width × 9mm length) for space-constrained applications while maintaining full strength
• Environmental compliance assurance with RoHS 3 certification meeting industrial safety regulations

Professional Applications & Engineering Value

This zinc-plated steel coupling nut delivers exceptional performance in demanding industrial applications where reliable threaded connections are critical. The Class 6H precision thread fit eliminates play and vibration-induced loosening in machinery assemblies, while the fully threaded metric design provides maximum engagement length for superior tensile strength. The external hex drive style enables high-torque installation without stripping, making it ideal for production line applications requiring repeatable, secure fastening. The coarse pitch M3 threading ensures rapid assembly in automotive, electronics, and mechanical systems where vibration resistance and connection integrity are paramount. The zinc plating creates a protective barrier against corrosion, extending service life in challenging environments while maintaining RoHS compliance for global manufacturing standards.

Specification Summary & Compliance

This metric coupling nut features M3 × 0.5 mm coarse pitch threading with Class 6H thread fit tolerance according to metric standards. The component maintains precise dimensional accuracy with 6mm width across flats and 9mm total length. Manufacturing complies with RoHS 3 (2015/863/EU) regulations under exemption 6(a)-I for lead as an alloying element in steel, ensuring environmental responsibility while meeting industrial safety requirements for global supply chain integration.