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Installation method for keylocking threaded insert
AD-insert? keylocking threaded insert is a kind of special fastener with external and internal thread and there are 4 or 2 keys on external thread. Install insert into the tapped hole, then press-into 4 keys,resulting a strong tightening effect. This kind of inserts are mainly used for the products of high strength of screw thread  such as:military industry, aerospace, railway locomotives, mechanical vibration and so on.

The following is installation methods for keylocking threadedinserts:

1:Drill: The drill hole’s depth should be greater than keylocking threaded insert’s length.


2:Tapping:  the tapped thread should be matched with external thread of keylocking threaded insert.


3: Install: screw insert into hole, the insert should below the surface of the workpiece.


4:Lock : press the insert’s keys into hole with special tools.


5:The state of keylocking threaded insert,after installation.(as picture)