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
“LILIES” AGAINST “THE LION”
From the point of view of war at sea the eighteenth century has largely been a century frigates. For over a hundred years three major powers of Europe were engaged in a military...
Magazine rack
MATERIAL: metal rod Ø 6 mm, matting or Mat, a thin soft wire, lacquer furniture, small for metal. TOOL: hacksaw, file, sandpaper, scissors, meter, brush, hammer, vise. ...