You can find heavy duty locking drawer slides on Amazon. I don't think any one brand is the quality leader, they all seem to be made in China.
I had my drawer built by a local cabinet shop out of 3/4" plywood and then I finished it with Raptor Liner which is a black textured bed liner. TruckVault uses the simplex push button deadbolt lock and I used the same on my prior box and they work great. This time I used a biometric deadbolt lock (with key backup) that has an app for my phone because I'm a geek.
Before someone else says it.. nothing is truly theft proof, it just delays a thief and hopefully they move on to an easier target. I still insure against property loss.
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