Hi all,
Excellent community here, hopefully I will be able to stop banging my head against google here and actually find what I need.

I have a bunch of lenovo a58 boxes here that we need to prevent users from opening.
I am looking for the official chassis locks for these machines, as the ones I have don't push the locking mechanism far enough forward to engage.
Attached is a picture of what I have, does anyone know where I can get the official ones?
I tried calling lenovo, they hung on me after about 30 minutes of going round and round.