Threaded inserts have to secure keys to grip them in place. These insets are for metal uses, not optional for cast iron or hard material. Repair impaired threads with a constructive mechanical lock, stopping rotating spin out from vibration or torque.

Key Lock Insert for heavy-duty is general-purpose threaded inserts with a dense, heavy-duty thread wall, appropriate for most applications. Heavy-duty Key Inserts are perfect for thread strengthening, especially when you frequently remove the mating stud or bolt. They offer complete and permanent steel threads in almost any parent substantial – non-ferrous, ferrous, or non-metallic.

Moreover, they are highly versatile as heavy-duty Key Inserts are also suitable for quick overhauling stripped, worn, damaged threads. Locking keys prevent the insert from rotating.

Here we will look at some of the features and installation and removal of these types of inserts and how they are beneficial for different inserts.


  • They are easy to install key lock insert
  • They are easily Installed with standard drills and taps
  • They do not need pre-winder required
  • They do not require any tang break-off.
  • Locking keys offer a positive mechanical lock, stopping rotation due to vibration or torsion.
  • It can be used in most materials aluminum, cast iron, magnesium, cold-rolled steel, and plastic
  • It helps to give high strength and reliability. Also, one length per size delivers maximum pullout strength.
  • It allows to breaks Grade 8 bolts in test after test.

The installation and removal of key insert

Easy to install

No superior skills are required for the critical insert installation. It can be learned in minutes. You only need to drill, tap, screw in, and drive down.

Drill and remove the old threads with a regular drill. The drill is oversize. Then Chamfer the hole with a standard countersink of (82° -100°). After this step, tap the new thread with a standard tap. Then Screw in the insert till slightly below apparent. Finally, Drive keys down with numerous hammer taps on the proper installation tool.

Easy to Remove

You need to follow three steps to remove the installation: drill, deflect and remove or replace. Drill out old substantial between keys and internal thread with a standard routine to state. Deflect keys internal and break off. Then Remove the insert using an E-Z out, Drill-out, or similar type tool. Also, you can do the same size replacement insert that may be installed in the original hole.

Advantages of Key Locking Inserts

If you’re significant between a key locking insert or another insert, the former has some essential benefits one-time. The risk of using a helical threaded insert is that these inserts with a “tang,” or piece of substantial at the lowest of the insert that is the fastener point for the fixing tool. After installation, the tang is wrecked off and can end up movable in the frame of your application. In specific applications, this can source an electrical short or another breakdown. With a key locking insert, there is no hazard of a tang or other fastener component ending up loose in the framework, making it a safer, more secure solution.

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