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
PIN VISE
When gluing various small items to be tightly pressed against the connecting part is very difficult. Resorted to using masking tape, and rubber bands, and thread. I was faced with such a...
ABOUT HOW MODEL AIRCRAFT DID
Any machine is not born suddenly starts with something more simple. It happened with the plane-monoplane. Its forerunner was destined to become a flying model. Was 1887. Professor of...
