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Nylon Insert Lock Nuts

Nylon insert lock nuts or nylock nuts are a type of self-locking nut. They feature a layer of nylon material on the inside. They can be cost-effective since they work without a second lock nut.

How Nylon Insert Lock Nuts Work

The internal diameter of the nylock nut is smaller than the bolt thread. When you tighten the nut against the bolt, the nylon yields to the pressure and forms a thread to conform to the bolt’s leading threads.

The nylon fibers expand and grip the bolt. The nylon insert also applies resistance to the bolt and nut, creating friction along the area where the bolt and nut meet. These two actions create a tight bond that protects the nut and bolt from:

  • Vibrations that can cause them to come loose
  • Rust and corrosion from some chemicals
  • Liquid seepage

Nylock bolts are reusable in many applications, although some critical areas, such as aerospace, may specify replacement after use.

Applications for Nylon Insert Lock Nuts

A variety of industries use nylock nuts, including:

Nylon insert lock nuts can retain their locking properties in temperatures up to 250 degrees Fahrenheit.

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About Brazos Fasteners

Our focus is to provide high-quality fasteners in whatever time frame you need them with expert customer service. The success of various organizations with diverse backgrounds relies heavily on our products, which are held to high standards.

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