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
BUILDING A CAR
FROM THE ENGINE TO THE WHEELS The transmission from the engine to the wheels can be carried out on a homemade car in different ways. In practice, often such schemes: a)...
WITHOUT CUTTING THE FILM
To view footage of film is convenient to use diazapam, making cuts to the film advance. D. NOVIKOV, Krasnoyarsk
