If the head of the screw to give with the help of nalilsya the form shown in the figure, then any attacker will not be able to turn. On such hardware it is recommended to set sensible things sailing and motor boats, hook locks.
Recommend to read
“CLEAVER” CABLE
Party NTTM, army innovator Y. Bandurko, suggested a simple device for cutting steel wire rope. Steel is the base plate to which are welded crosswise arranged vertical edge guides....
MAGNET AGAINST THE WIND
To open window the window is not closed under the impulse of the wind, it is easy to establish a kind of brake, which would not allow it to close, and left at least a crack. On the...
