Preliminary Understanding of Wire Thread Inserts (2)

Wire thread insert is a new type of connection and fastening technology, which can effectively improve the connection conditions during screw connection and greatly improve the reliability of screw connection. Its advantages are as follows:

Wire thread inserts are used in various low-strength materials, which can greatly improve the wear resistance of screw connections and avoid damage to the connecting threads.

Due to the certain elasticity of the wire thread insert, the load distribution on each circle of the thread can be more uniform, the pitch and tooth shape deviation between the screw and the screw hole can be eliminated, and vibration can be absorbed, thus improving the connection strength and fatigue strength of the thread .

The locking type wire thread insert can lock the screw in the threaded hole, so that the screw will not loosen when subjected to shock and vibration, and the process performance is better than the usual locking device.

Compared with the method of inserting steel or copper bushings, under the same strength conditions, smaller size and higher strength screws can be selected, which can reduce the volume and reduce the weight.

The hardness of the wire thread insert is higher than that of the screw, so it is less worn during the assembly and disassembly process of the screw connection and can be used repeatedly. According to related experimental studies, the tensile strength of the wire thread insert is more than 7 times that of the screw, so the wire thread insert will not be damaged even if the screw is broken.