The accuracy level of key locking insert is usually classified according to international standards or national standards. The accuracy level usually covers the dimensional accuracy of the inner hole of the thread insert and the quality of the thread. Here are some common accuracy classes for key locking thread inserts:
1. 4H/5H/6H grade:
These grades are mainly used for the dimensional accuracy of the inner hole of the thread insert. The smaller the number, the higher the accuracy. Typically, 4H is used for high-precision applications, while 6H is used for general engineering applications.
2. 4G/5G/6G grade:
These grades are typically used for thread quality in threaded inserts. 4G is typically used for high-precision applications, while 6G is used for general engineering applications.
The specific definitions and requirements of these grades may vary according to different international standards (such as ISO, DIN) or national standards. Selecting the appropriate accuracy grade of key locking insert needs to be determined based on specific engineering needs and standards. Typically, high-accuracy grades are suitable for applications requiring higher accuracy, while lower-accuracy grades can be used for general engineering applications.
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