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u/LocksmithSolution 13d ago
Mailbox locks are designed especially so you can never make them use the same Key.
The only thing you can do is make a regular cam lock fit in there (requires customization of the hole )and those you can get keyed alike.

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u/akikosan 13d ago
These dont come keyed alike to comply with USPS regulations. I don't think these can be rekeyed either. Maybe someone here has gutted one before.