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How to Install a Mailbox Lock?

How to Install a Mailbox Lock?

It’s happened to all of us at some point. We go to check our mail, and the mailbox is open with the contents spilled out onto the ground. Unfortunately, this can be a common occurrence, especially if your mailbox is located on a busy street. The good news is that there are ways to prevent this from happening, and one of them is installing a mailbox lock. In this article, we will walk you through the process of installing a mailbox lock step-by-step!

What You Need

Replacement lock

First, you’ll need to purchase a replacement lock for your mailbox. It is important to make sure that the lock you purchase matches the type and size of your current mailbox. Your local hardware store should have a variety of locks available to choose from.


You will also need a wrench to remove any existing hardware and install the new lock.

Drill and drill bit (optional)

If your mailbox is made of metal, you may need a drill and a drill bit to add holes for the new lock.

What to Do

Step 1: Open the mailbox by drilling the keyhole

This step is only necessary if you are replacing a lock that requires a key for access. Just take your drill and drill bit and make a hole in the side of the mailbox large enough to fit the key.

Step 2: Remove the nut and slide the lock bar and metal clip

Using your wrench, remove the nut that holds the existing lock in place. Once you have removed the nut, slide off the lock bar and metal clip.

Step 3: Pull out the old lock and install the new one

Now you can pull out the old lock and install the new one. Make sure to place the metal clip and lock bar in the same positions as they were before.

Are mailbox locks secure?

Yes, a mailbox lock is a secure way to keep your mail safe and private. The locks provide an extra layer of protection against thieves or anyone who might be tempted to snoop in your mailbox. With the right lock, you can rest assured that your mail remains secure!

Are mailbox locks rekeyable?

Most mailbox locks are rekeyable, meaning they can be changed to a different key if needed. This is a great feature for those who want to use the same lock but need to give different people access to their mailbox.

How to replace the mailbox lock?

Replacing a mailbox lock is relatively simple and can be done with just a few tools. With the right replacement lock and some basic tools, you can have your mailbox secure in no time!


Can I add a lock to my mailbox?

Yes, you can add a lock to your mailbox. Most mailboxes are pre-drilled with holes at the top and bottom, allowing you to easily attach a new lock. Make sure to choose a lock that is appropriate for your type of mailbox. [1]

Can I add a lock to my mailbox?

How do I get a new mailbox lock?

You can purchase a new mailbox lock from your local hardware store. Be sure to check the size and type of lock before making your purchase, as not all locks will fit all types of mailboxes.

How do I remove a mailbox lock and install it?

Removing a mailbox lock and installing a new one is relatively straightforward. First, you’ll need to remove the nut that holds the existing lock in place using a wrench. Then, slide off the lock bar and metal clip before pulling out the old lock. Finally, install your new lock following the same steps in reverse.

Are locking mailboxes worth it?

Yes, locking mailboxes are definitely worth the investment. Not only do they provide an extra layer of security, but they also ensure that your mail remains private and secure. Plus, you don’t have to worry about someone accessing your mailbox without your knowledge!

Are mailbox locks easy to pick?

No, mailbox locks are usually not easy to pick. Most of them are designed to be tamper-proof and require a key for access. This ensures that your mail remains secure and private at all times!

Can the post office give me a new mailbox key?

Yes, the post office can provide you with a new key for your mailbox. However, this is only possible if you have an existing lock that requires a key. If you don’t have a lock or need to replace it, you will need to purchase one from a local hardware store. [2]

Useful Video: Replace Mailbox Lock


It is important to keep your mailbox locked in order to protect your mail from thieves. By following the simple steps outlined in this blog post, you can easily install a mailbox lock on your own. Be sure to choose a lock that is durable and weather-resistant, so that you can rest assured knowing that your mail is safe and secure.


  1. https://www.remodelormove.com/can-you-put-a-lock-on-a-regular-mailbox/
  2. https://faq.usps.com/s/article/Locked-Mailboxes-and-Mailbox-Keys