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
MACHINE FOR CHARGING NI-CD BATTERIES
The Internet caught the eye diagram of the automatic charger Ni-Cd batteries developed by Yuri Bashkatov. Assembled the circuit on the breadboard — not working. Modeled it on the...
PLAYING IN THE YARD
Familiar and typical of most courtyards of residential areas of the picture: instead of equipped children's playgrounds — a traditional sandbox with no less than the traditional...
