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
MIXER FROM THE BARREL
Mixer when building a house. Cement mortar require a lot, besides he needs occasional stirring. A trough with a shovel is not important here assistants — nama with them before the...
The Yak-130
The Yak-130 is designed for replacement of the main UTS of the Russian air force L-39. First flight on a double Yak-130D ("Demonstrator") with two engines RD-35 took place on 25 April...