Keylocking threaded insert is a kind of special fastener with external and internal thread and there are 4 or 2 keys on external thread.they are widely used for the products of high strength of screw thread, such as: airborne, ship, vehicle military electronic equipment and instruments and meters, locomotives, etc.

There are two kinds of materials for keylocking threaded inserts:carbon steel , stainless steel. The insert has Thin wall,Heavy duty,Solid,Extra heavy duty.Metric size and inch size are available.

The most basic function of keylocking threaded inserts is fixed internal thread and strengthen the external thread.The keylocking threaded inserts as a kind of a thread repair method can quickly and efficiently to repair damaged threads.When they applied in low intensity of material, they can greatly enhance the strength of the threaded hole.

AD-Insert? Heavy duty keylocking threaded insert application 

information as follow(Inch):

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