The M20 Locking nut from RS PRO is an essential fastener used for securing ranges of cable glands, adaptors, and reducers providing you with safe and secure connections. The Hex nut (hexagon) is six sided, complete with machined threads so allows for easy installation, tightening, and loosening the lock nut as needed.

Made from Nickel plated brass the RS PRO metric threaded Hex Nut is robust, corrosion resistant and widely used for electrical installations due to its protection from corrosion. Brass, nickel plating does not oxidise so making the Hex Nuts suitable for using within high moisture and high temperature environments and they do not rust.

When choosing a Hex Lock Nut for a specific application you should ensure that it is suitable for that application, consider specific load requirements, the environment and whether it is compatible with other components.

• Electrical, mechanical, and industrial environments


• Electrical enclosures


• Conduit fittings


• Cable glands, lighting fixtures, pipe systems


• HVAC systems, Outdoor equipment and many more

RS PRO is the own brand of RS. The RS PRO Seal of Approval is your assurance of professional quality, a guarantee that every part is rigorously tested, inspected, and audited against demanding standards. Making RS PRO the Smart Choice for our customers.