Metal Lock Nuts are designed with features such as serrations or deformed threads to prevent loosening. Unlike nylon insert lock nuts, these all-metal nuts can withstand high temperatures and harsh environments, providing consistent locking strength. They are ideal for applications requiring durability and reliability, particularly in conditions involving high heat and vibration. Metal Lock Nuts are commonly used in heavy machinery, automotive, and aerospace industries, ensuring secure fastening in critical applications such as engines, turbines, and structural components. Their robust construction makes them suitable for demanding environments where standard nuts might fail.