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
A SCREEN AT THE RADIATOR
The aesthetics of the interior of the home depends not only on furniture and carpets, curtains and colors of the Wallpaper. Sometimes a small protruding detail of building structures or...
SPANNER… FIRE
Works as a blacksmith, I want to tell you a secret: it's easy to Unscrew the rusted screw connections. Since they have the opportunity — heat the screw a few degrees to about 500-600...
