Hello, I just joined the forum purely to ask this one question. haha

What is the lock called that is supposed to go with this device, and where can I get them?!

I've looked everywhere trying to find out, and the closest I got was that it possibly had something to do with cabinetry?

There is a 10,000 Internets reward, and my eternal gratitude, to anyone who can point me in the right direction.