How to Replace a Key to a Metal Filing Cabinet

Gather Materials Needed

Before starting, make sure you have the following items:

• New replacement key – Get an exact duplicate of your existing filing cabinet key made at a hardware store or locksmith. Bring your cabinet’s original key or the key code if you have it.
• Hammer and screwdriver – You’ll need these basic hand tools to remove the lock from the filing cabinet. A Philips and flathead screwdriver should cover most cabinet locks.
• Lock lubricant (optional) – A lubricant like WD-40 can help loosen a stiff lock mechanism before removing it.

Remove the Lock

With the right materials in hand, you’re ready to remove the filing cabinet’s current lock:

1. Open the cabinet – Make sure all drawers are unlocked and open before proceeding.
2. Locate lock screws – Typically found on the inside of the top drawer. You may need to remove any brackets or covers obstructing the lock.
3. Lubricate the lock (optional) – Spray or apply lubricant into the lock opening and around the keyhole if the lock is stiff. Allow it to penetrate for 5-10 minutes.
4. Remove lock screws – Use your screwdriver to remove any screws holding the lock in place.
5. Tap out lock cylinder – Carefully tap the lock cylinder out from the front using a hammer. Protect the cabinet finish by placing a cloth between the hammer and cabinet.
6. Remove old lock – The lock should slide out once the cylinder is tapped out sufficiently. Discard old lock if damaged.

Install New Lock

With the old lock removed, installing a new replacement lock is straightforward:

1. Insert new lock – Slide the new lock into the hole in the cabinet. Make sure it is oriented correctly.
2. Replace lock screws – Tighten screws firmly to secure the new lock in place. Be careful not to strip the threads.
3. Test key – Insert your new key and verify that it turns smoothly to lock and unlock the cabinet.
4. Replace covers – Replace any brackets, covers or trim pieces that were removed from around the lock.
5. Lubricate the lock (optional) – Use lock lubricant to ensure your new lock continues working smoothly.

And that’s it! With a few basic tools and supplies, you can successfully replace the lock on a metal filing cabinet when keys are lost or a lock becomes damaged. Just take care not to force anything and damage the cabinet when removing the old lock mechanism.

Frequently Asked Questions About Replacing Filing Cabinet Keys

Here are some common questions people have about replacing keys for metal filing cabinets:

Can I get a filing cabinet key duplicated?

Yes, most locksmiths and hardware stores can duplicate your existing key as long as the key pattern is not proprietary. Bring your key or the key code to get an exact copy made.

What tools do I need to remove a filing cabinet lock?

A basic screwdriver (Philips and/or flathead) and a hammer are generally all that’s needed. A lock lubricant like WD-40 can also help loosen a stiff lock before removal.

How do I get the old lock cylinder out?

With the lock screws removed, carefully tap the lock cylinder out from the front using a hammer. Place a cloth between the hammer and cabinet to prevent scratches. Apply firm taps until the cylinder pushes out.

Should I lubricate my new filing cabinet lock?

Yes, using a lubricant like Tri-Flow or WD-40 on your new lock’s cylinders will help keep the mechanism turning smoothly for years before needing to be replaced again. Apply a few drops into the lock opening.

What if my filing cabinet key doesn’t turn smoothly?

First try lubricating the lock cylinder with a penetrant like WD-40 or by “working” the key in and out a few times. If that fails, you may need to have the lock replaced if it’s become too worn or damaged.

How can I find the key code for my filing cabinet lock?

Check the original cabinet paperwork for the key code or contact the manufacturer with the brand and cabinet model. There may also be a small sticker on the lock itself with the key code. This number is needed to get a duplicate key made.

What if I can’t get the broken key out of the lock?

Call a professional locksmith. They have special tools to extract a broken key tip from a lock cylinder. Attempting to dig it out yourself may damage the lock further. Most locksmiths can also originate new cabinet keys using just the manufacturer key code.

Replacing keys for a metal filing cabinet is a task most DIYers can tackle on their own with relative ease. Focus on taking your time, using proper tools, and avoiding force. Or call in a locksmith if you have issues getting the original lock removed or working with a broken key. With a quality replacement key on hand, you’ll have your filing cabinet locked up and secured again in no time.

Conclusion

Having to replace a lost or damaged key for a metal filing cabinet is inconvenient, but fortunately it’s a repair anyone can do themselves with minimal tools and time. The process involves carefully removing the old lock, inserting an identical replacement, and testing that the new key works properly. With the right preparation and materials, you can swap out a filing cabinet lock easily. Just be sure to work methodically, avoid force, and lubricate the new lock so it continues working smoothly for years of daily use.