A lock nut goes on just like a regular nut, but with an added feature to prevent it from loosening.
Understanding Lock Nuts
Lock nuts are designed to securely fasten a bolt or screw, resisting vibrations and preventing loosening over time. This is achieved through various mechanisms:
- Jam nuts: These have a slightly larger diameter than the regular nut, creating a tight fit when screwed down.
- Nylon insert lock nuts: These have a nylon insert that deforms under pressure, creating friction and preventing loosening.
- Self-locking nuts: These have a special internal design that creates a wedge-shaped effect, preventing the nut from rotating.
Installing Lock Nuts
To install a lock nut, follow these simple steps:
- Thread the bolt or screw through the hole in the part you are fastening.
- Place the lock nut on the bolt or screw.
- Tighten the lock nut using a wrench or socket.
- Tighten the lock nut to the desired torque specification.
Tips for Using Lock Nuts
- Choose the right lock nut: Select the type of lock nut that best suits your application, considering the load, vibration, and environmental conditions.
- Apply lubricant: Apply a small amount of thread lubricant to the bolt or screw threads to prevent galling and make installation easier.
- Check for proper torque: Always tighten the lock nut to the specified torque value for the application.
