ThePipingMart Blog Fasteners Lock Nut vs Stop Nut – What’s the Difference

Lock Nut vs Stop Nut – What’s the Difference

Lock Nut vs Stop Nut

Are you looking for a fastener to hold securely and prevent loosening from vibration? If so, you may want to consider either a lock nut or a stop nut. Both of these types of nuts are designed with features to keep them in place, but they work differently. Let’s take a closer look at the differences between lock nuts and stop nuts.

Stop Nut

Stop nuts are used in applications where there is no counter-threaded bolt or screw. The top portion of the nut has two prongs that protrude away from the main body and fit into two grooves in the material -that it is being secured to. These prongs act like a wedge, locking the nut in place when tightened down. This type of nut is used most often on thin materials such as sheet metal or plastic.

Lock Nut

Lock nuts are similar to regular hexagonal nuts except that they have an additional feature—a nylon insert inside the nut that provides resistance against vibration-induced loosening. The nylon insert also helps keep the threads lubricated so that even if some small amount of movement does occur, it can be easily adjusted by hand without having to remove any other parts. Lock nuts come in many different sizes and styles, including heavy-duty versions suitable for use on large industrial machinery.

Difference Between Lock Nut and Stop Nut

  • A lock nut, also known as a jam nut, is a type of nut that is used to secure another nut in place.
  • A stop nut, also known as a check nut, is a type of nut that is used to prevent another nut from moving.
  • Lock nuts are typically used in applications where it is important that the nut does not come loose, such as in automotive or aerospace applications.
  • Stop nuts are typically used in applications where it is important that the nut does not move, such as in electrical or plumbing applications.
  • Lock nuts are available in various materials, including steel, stainless steel, and brass.
  • Stop nuts are available in a variety of materials, including steel, stainless steel, and brass.

Conclusion:

Whether you choose a lock nut or a stop nut will depend on your specific application requirements. Stop nuts are great for thin materials because their wedge design makes them very secure when tightened down properly. Lock nuts, on the other hand, provide resistance against vibrations and self-adjusting capability, which makes them ideal for use in applications where frequent adjustments may be needed due to changing conditions or temperatures. No matter what type of fastener you choose, safety should always be your number one priority!

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