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How To Install Mailbox Locks

Updated: Nov 26, 2021

Theft in mailboxes is more likely to occur than most people know. There is a good chance that you could be a victim of identity theft without even knowing it due to lost files. But what you may not know is that only a few people take the time to check the security of their home to help them see that their mailboxes need to be safe and secure. No matter how inconvenient the truth may be, knowing how to install a mailbox lock will add an extra layer of protection to your documents.

Installing a mailbox lock is easy and does not require skilled help. Use the directions below to learn how to install a mailbox lock.

Step One: Shopping for a New Lock

Before you go about changing the lock, take a look at the KR-S64A for replacing locks.

There are plenty of hardware stores to find new ones. Or you can search online for replacment locks and mailbox keys. There are a few types from which to choose.

Step Two: Remove the Old Lock

Before you can replace your old lock, you have to take it down. If you prefer to do it yourself, you can save money by removing the lock yourself.

If you don't have the key, you may have to wait for the mailman and have them unlock the lock for you.

Once you have the mailbox open, unscrew the nut from the lock and remove the latch. Then, look for the U-shaped pin inside. Depending on the type of lock you have, you may need to pull the pin up or down with a pair of pliers.

When you pivot the pin, you can pull the lock out.

Step Three: Installing the New Lock

What you’ll need to replace the lock:

  • A pair of pliers

  • Channel locks

  • Replacement lock

When installing a new lock, be sure to remove the key it came with from the keyhole.

Put the new lock inside and place it where you removed the old one.

When you go to replace the pin, you have a choice. You can decide to use the pin again, or you can use the nut. A nut is sometimes more secure because it has threads in the recess of the lock. But either one is good.

Put the new pin around the lock. You can then use the channel lock to help push the replacement pin into place.

To replace the latch, place it on the back of the lock. Then screw the smaller nut onto the end. You can then test the lock to make sure the latch is the right size.

If you try to lock it and the key won't come out, you'll know if the latch is too big. If it doesn't lock at all, and you can pull it open, you'll also know it's too small.

Once you follow these steps, you will have a secure mailbox.

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