S-93020A103 M3 x 9 mm Coupling Nuts

Key Features & Benefits at a Glance

• Secure and Reliable Connections – Class 6H thread fit ensures precise engagement with mating components, reducing the risk of loosening under vibration and load.
• Enhanced Durability and Corrosion Resistance – Black-oxide steel finish provides a protective layer, extending service life in demanding industrial environments.
• Efficient Torque Application – External hex drive design allows for easy installation with standard tools, enabling high torque transfer without slippage.
• Versatile and Fully Threaded Design – Fully threaded right-hand metric profile accommodates a wide range of rod and stud lengths, simplifying assembly and adjustment.
• Consistent Performance in Metric Systems – M3 x 0.5 mm coarse pitch threading offers quick assembly and reliable holding power in metric-based applications.
• Compliance with Environmental Standards – RoHS 3 compliant, ensuring safe use in regulated industries without compromising material integrity.
• Optimized for High-Strength Applications – Steel construction provides excellent tensile strength, making it suitable for structural and mechanical fastening needs.

Professional Applications & Engineering Value

This M3 coupling nut is engineered to address common challenges in industrial assembly, such as maintaining alignment and load distribution in extended fastener systems. Made from black-oxide steel, it resists rust and wear, which is critical in humid or abrasive conditions. The fully threaded and coarse pitch design allows for rapid installation and adjustment, reducing assembly time in production lines. With a Class 6H thread fit, it ensures tight tolerances that prevent cross-threading and improve joint integrity in machinery, automotive, and electronics applications. The external hex drive facilitates easy handling with common wrenches, enhancing workflow efficiency while providing reliable torque control for secure connections.

Specification Summary & Compliance

This coupling nut features M3 thread size with 0.5 mm coarse pitch and Class 6H thread fit per metric standards, ensuring dimensional accuracy and compatibility. It is manufactured from black-oxide steel and is fully threaded with right-hand threading. The product complies with RoHS 3 (2015/863/EU) under exemption 6(a)-I for lead as an alloying element in steel, meeting environmental and safety regulations for industrial use.