How to Re-Key a Defiant Lock

Quck answer

To re-key a Defiant lock, follow these steps:

1. Gather the necessary tools: a key decoder, a new key, a pinning kit, and a screwdriver.

2. Insert the original key into the lock and turn it to the unlocked position.

3. Locate the retaining screw on the lock cylinder and remove it using the screwdriver.

4. Slide the lock cylinder out of the door handle.

5. Use the key decoder to determine the pinning combination of the original key.

6. Remove the old pins from the lock cylinder using the pinning kit.

7. Insert the new key into the cylinder and add new pins according to the decoder’s instructions.

8. Reassemble the lock cylinder, insert it back into the door handle, and secure it with the retaining screw.

9. Test the new key to ensure it works smoothly in the lock.

By following these steps, you can easily re-key a Defiant lock to use a new key.


There are three popular lock types in the United States: Kwikset, Schlage, and Defiant. Kwikset and Schlage dominate the residential lock market, but Defiant locks are becoming more popular among homeowners because of their affordability, attractive appearance, and functionality.

How to Re-Key a Defiant Lock

Changing the lock without replacing the hardware can be done by rekeying the lock. This is a cost-effective way to maintain high security. The rekeying process involves changing the inner core of the lock while keeping the outside hardware intact, requiring a new set of keys. Previous keys will no longer work with the new lock.

Rekeying locks is commonly done in situations such as lost or damaged keys, turnover of tenants in rental properties, and recent break-ins. If your keys end up in the wrong hands, rekeying may be necessary.

You have the option of calling a locksmith to rekey your lock for a fee, or you can do it yourself by purchasing a rekey kit. Rekey kits can be found at major hardware or home improvement stores, allowing you to rekey your lock at any time.

Rekeying a Defiant lock follows a similar process to rekeying any other type of lock, but you will need the original key for the Defiant lock.

Remove the Lock From the Door

Use the wire tool from the kit to remove the deadbolt from the door by inserting the tool into the doorknob hole. Unlock the original lock by inserting the original key, then remove the key.

Extract Lock Cylinder and C-Clip

Remove the cylinder from the cylinder guard in the lock and insert the old key again. Use the spanner tool to remove the C-clip, then turn the key about 45 degrees.

Remove Interior Plug

Insert the plug follower tool provided in the kit to push the plug out from inside the cylinder. Make sure to keep the plug follower inside the cylinder housing to prevent the interior pins and springs from falling out.

Replace Pins

Remove the key and take out the pins in the bottom pin holes. Replace the pins, matching them with the colors specified in the kit instructions. Carefully insert the pins for the best results. Tweezers may be helpful for this step.

Test Your New Lock

Insert a new key and test the lock. Turn the key back and forth multiple times to ensure that the correct pins have been placed. Finally, reassemble the lock by reinserting the cylinder plug and installing the rekeyed lock on the door.

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