Nylon Insert Nut

A nylon insert nut, also known as a nylon lock nut or a nyloc nut, is a type of fastener with a nylon ring or insert inside the nut. The nylon insert creates resistance against loosening when the nut is tightened onto a bolt or screw, providing a secure and reliable locking mechanism.

Here's how a nylon insert nut works:

1. Design: The nylon insert nut has a standard hexagonal (six-sided) shape with threading inside to fit onto a corresponding bolt or screw. The top side has hexagonal wrenching flats for easy installation.

2. Nylon Insert: Inside the nut, there is a ring or insert made of nylon material. This insert is usually located at the top end of the nut, where it comes in contact with the threads of the bolt or screw.

3. Locking Feature: When the nylon insert nut is tightened onto a bolt or screw, the nylon ring creates friction against the threads, resulting in a prevailing torque or resistance to movement. This resistance prevents the nut from easily loosening due to vibrations or other external forces.

The nylon insert nut is commonly used in applications where the joint needs to remain secure and stable. Some key advantages of nylon insert nuts include:

1. Vibration Resistance: The locking feature provided by the nylon insert makes these nuts ideal for use in applications where vibrations may cause conventional nuts to come loose.

2. Reusable: Nylon insert nuts can be used multiple times without losing their locking ability. However, excessive reuse or damage to the nylon insert may reduce its effectiveness.

3. No Need for Additional Lock Washers: Using a nylon insert nut eliminates the need for additional lock washers or other locking devices, simplifying the fastening process.

4. Wide Range of Applications: Nylon insert nuts are used in various industries, including automotive, aerospace, machinery, electronics, and construction.

It's important to note that nylon insert nuts should not be over-tightened, as doing so may damage the nylon insert and reduce its locking ability. Additionally, for high-temperature applications, it's essential to use nylon insert nuts with a temperature rating suitable for the environment.

When choosing a nylon insert nut, consider the thread size, material, and intended application to ensure a proper fit and reliable performance. Nylon insert nuts are available in various materials, such as steel, stainless steel, and brass, to accommodate different environmental conditions and corrosion resistance requirements.