All-Metal Lock Nut

The key features shown are:

• d: Diameter of the threaded hole

• F: Width across the flats of the hexagonal nut head

• H: Height or thickness of the nut

• Z: An additional section or element protruding from the main nut body

The distinguishing feature that identifies this as an all-metal lock nut is the additional Z-shaped locking component. This locking element, often made of metal, creates a prevailing torque that helps prevent the nut from loosening due to vibration or other forces.

All-metal lock nuts are designed for applications where a very secure, tamper-resistant connection is required, such as in heavy machinery, vehicles, or structural assemblies. The metal locking mechanism provides a stronger and more durable locking action compared to some other types of lock nuts.

The specific dimensions provided, including the thread diameter (d), width across flats (F), and height (H), would allow this particular all-metal lock nut to be properly specified and manufactured to suit the needs of the application.