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what is nylon insert lock nut

Views:1     Author:Site Editor     Publish Time: 2018-05-06      Origin:Site

A nylon insert lock nut, also referred to as a nyloc nut, polymer-insert lock nut, or nylon insert (elastic) stop nut, is a common type of lock nut comprised of a hex nut with a fixed nylon-filled collar at its back end. When a screw reaches the collar, the threads and nylon form a tight, frictional fit, thus restricting movement of the screw when it is subject to vibration. Nyloc nuts are designed to be used with machine screws and bolts and can be reused.

 hex nut (10)

Nylon nut vs standard nut

Nylon lock nuts differ from a standard hex nut in that they have nylon insert secured within the nut. The nylon insert is located in a tapered section located at the back of the nut. When you install the nylon lock nut onto a bolt or threaded stud, the nylon insert wraps around the threads and locks the nut in place. This gives a nylon lock nut a distinct advantage over a lock washer when the bolt or threaded stud is subject to vibration, as the nylon lock nut is unaffected by vibration.

 

How to install nylon insert lock nut

Step one:

Examine the nylon insert of the nylon lock nut to ensure that the insert is not damaged.

Step two:

Thread the nylon lock nut onto the bolt or threaded stud and turn the nut clockwise with your hand until it no longer turns. This will be the point that the nylon insert contacts the top thread of the fastener.

Step three:

Place the socket that matches the nylon lock nut onto the 3/8-inch drive ratchet.

Step four:

Slide the socket onto the nylon lock nut and turn the handle of the ratchet clockwise to turn the nylon lock nut onto the fastener. You will feel some resistance from the nylon lock nut as you turn it onto the fastener. This is created by the nylon insert and is completely normal.

Step five:

Continue turning the ratchet handle until the nylon lock nut seats tightly against the surface of the material you are securing with the nut.

Finally, inspect the nylon insert of the lock nut to ensure that it is intact after installation.


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