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
ACCORDING TO THE PROJECT OF FRIEDRICH ZANDER
25 Nov 1933 soared gird-X — the first Soviet experimental rocket with LRE (liquid rocket engine). It was created in the Gird under the direction of S. P. Korolev on the project and...
ARMORED KAMAZ
Local military conflicts and counter-terrorism operations of recent years has revealed the problem of resistance army transportation from destroy military units of the enemy, and also...