The nylon locking nut is an important fastener that is widely used in anti-loosening applications. Its working principle is that the deformation of the internal nylon ring forms a tight contact with the bolt threads. After the nut is installed, the nylon ring and the threads are in a compressed contact state, providing continuous rebound force to ensure the connection is stable and not prone to loosening.

During use, the nylon nut may experience the problem of ring detachment. This chapter will thoroughly analyze the main reasons for this phenomenon.

. Errors in installation methods

• Excessive torque: Electric tools usually have a large torque. If an excessive force is applied during installation, it will cause an instantaneous impact force on the nylon ring, resulting in deformation or even detachment of the ring. It is recommended to use the appropriate safe torque for installation according to the product specifications.
• Inconsistent installation: During the tightening process, if the force is not applied evenly or the tool is tilted, it will cause the nut and the bolt to be misaligned, increasing the friction between the threads and the nylon ring, thereby increasing the risk of detachment.

2. Issues with the matching bolts

Surface coating treatment: Some customers, in order to enhance the corrosion resistance of the bolts, apply surface treatments such as duralumin coating or galvanization to them. These treatments will increase the roughness of the threads and increase the friction between the nylon ring and the bolt, making the nut more prone to come off.

• 3.Defects of the product itself
• Incomplete nylon ring wrapping: During the production process, if the nylon ring is not properly injected, it may fail to form an effective compression with the threads, resulting in the ring coming off.
• How to Prevent and Resolve the Problem of Nylon Loosening
• To ensure the effectiveness of the use of nylon locking nuts, the following are some preventive and solution measures:
• Strictly control the installation torque: During the installation process, use a torque wrench to ensure that the applied torque is within the safe range.
• Select the appropriate coating process: If surface treatment is required, choose the suitable coating method to ensure that the processed threads have the appropriate surface roughness.
• Product quality inspection: Strengthen the inspection of the production quality of nylon rings to ensure the completeness and stability of the injection molding process.