Salsbury Industries 3575 Master Commercial Lock, Vertical Mailbox Metallic
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But if your Vertical Mailbox is going to be accessed by the USPS, then you do not have to install this lock, as the USPS will install their own special master lock. The information provided here is intended to be Your cooperation is greatly appreciated!
You will be provided with and have the master lock installed on the mailboxes by the US Postal Service if you use them for mail delivery. If you need assistance, you can contact your local Post Office. The lock you're checking out (model #3575) will work on these boxes, but they cannot be keyed the same way if they're not going to be used for US Mail. The information provided here is intended to be Your cooperation is greatly appreciated!
The answer is yes!
I was able to figure it out through my mailman.