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Custom Nylon Insert lock Nuts

Committed to the production of carbon steel and stainless steel fasteners, stamping parts and non-standard custom parts.


Founded in 2003, Haiyan Yuanda Metal Products Co., Ltd. is a China Nylon Insert lock Nuts Manufacturers and Wholesale Steel Nylon locking Nuts Suppliers dedicated to the production of carbon steel and stainless steel fasteners, stamping parts and non-standard custom parts. The annual production capacity can exceed 5,000 tons, strong technical force, complete production equipment, reliable product quality, good mechanical performance, widely used in construction, machinery, auto parts, breeding and other industries.

  • Customized Service
    Customized Service

    We mainly make customized products, we develop and produce products according to the drawings or samples provided by customers.

  • Quality Guarantee
    Quality Guarantee

    Quality Guarantee Quality Guarantee Yuanda after more than 20 years of technology accumulation and precipitation for the industry to improve performance cost reduction contributed to the strength of many years of market.

  • Production Capacity
    Production Capacity

    We have complete production equipment, with an annual output of more than 5,000 tons, which can meet the needs of customers with different purchase volumes.


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Industry Knowledge Extension

When to use Nylon Insert Lock Nuts?

Nylon insert lock nuts, also known as nylon lock nuts or Nyloc nuts, are designed to be used in applications where vibration or loosening of fasteners is a concern. They are commonly used in situations where a standard nut might come loose due to vibrations, changes in temperature, or other factors. The nylon insert within the nut provides a form of prevailing torque, which helps to resist the nut from coming undone.
Here are some scenarios where you might consider using nylon insert lock nuts:
Vibrating Environments: Nylon lock nuts are particularly useful in environments where there is a lot of vibration, such as machinery, automotive applications, or equipment that is subject to regular movement. The nylon insert helps to maintain consistent torque on the fastener, preventing it from loosening over time.
Temperature Variations: Temperature changes can cause materials to expand or contract, potentially leading to loosening of fasteners. Nylon lock nuts can help counteract this effect by providing a constant level of resistance to loosening, regardless of temperature fluctuations.
Critical Joints: In situations where the integrity of a joint is crucial for safety or functionality, using nylon lock nuts can help ensure that the fasteners remain securely in place. This is especially important in aerospace, medical equipment, and other industries where reliability is paramount.
Hard-to-Reach Areas: In places that are difficult to access for regular maintenance or tightening, nylon lock nuts can provide added security against unintended loosening.
Light Load Applications: Nylon lock nuts are not typically recommended for heavy-load applications or applications where high levels of torque are required. They are better suited for moderate load situations.
Corrosive Environments: While nylon itself is not affected by corrosion, the presence of a nylon insert can help prevent the penetration of moisture and corrosive substances that could affect the threads of the fasteners.

How does the Steel Nylon locking Nuts work?

Steel Nylon locking nuts, also known as nylon insert lock nuts or nyloc nuts, are a type of fastener designed to prevent loosening due to vibration, shock, or other dynamic forces. They consist of a standard hexagonal nut made of steel and an integrated nylon insert. The nylon insert is usually located at the top of the nut, where it creates a locking mechanism.
Here's how they work:
Design: The steel nylon locking nut has a nylon ring or insert located towards the top of the internal threads of the nut. This insert is slightly smaller in diameter than the threads of the bolt or screw it will be threaded onto.
Insertion: When you thread the nut onto a bolt or screw, the nylon insert gets compressed between the threads of the bolt and the internal threads of the nut. This creates friction and resistance.
Deformation: As the nylon insert is compressed, it deforms slightly. This deformation causes the nylon to grip the threads of the bolt tightly. The nylon insert acts as a barrier between the nut and the bolt threads.
Locking Action: The nylon insert effectively increases the friction between the nut and the bolt threads. This increased friction creates a locking action that prevents the nut from easily turning or backing off the bolt. Even when subjected to vibrations or dynamic forces, the friction generated by the nylon insert resists the tendency of the nut to loosen.
The benefits of steel nylon locking nuts include their effectiveness in preventing vibration-induced loosening, their ease of use (no additional tools or components required), and their reusability (though the nylon insert may wear out over time with multiple uses).