The lock bolt is in the mailbox does not always withstand the encroachment of the feeder bullies. Too primitive its form is thin and the iron from which it is made.
But if you replace the stock bolt with steel plate cross-section 20×3 mm, bent as shown, so just the box, no one will open.
Recommend to read
DRILL A WELL…
Villages without running water now, a little, but his presence in every rural home is rare: still dominated by collective hydrant. And of course I wanted to have water when not...
RESCUE CLIP
How to be if urgently need to carry out drafting work using ink, a special ruler with a raised above the paper edge among the tools was not there! A way out of this situation is shown in...