All Metal Locking Nuts

All metal locking nuts are precision-engineered self-locking fasteners designed to provide secure, vibration-resistant fastening for metric-threaded bolts and studs. Unlike conventional nuts, these all-metal locking nuts maintain a strong, reusable lock without the need for nylon inserts, spring washers, or thread-locking compounds. Their robust, all-metal design ensures long-term performance even under high vibration, temperature fluctuations, or heavy-duty applications.

At Arun Fasteners, we supply a wide range of metric all-metal locking nuts in various sizes and finishes to suit industrial, automotive, and engineering needs. These nuts are ideal for machinery assemblies, structural frameworks, and precision equipment, providing a durable, maintenance-free solution where reliability and safety are critical. Whether you are maintaining industrial machines or building high-performance equipment, our metric all-metal locking nuts deliver consistent and secure fastening every time.