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
THE BLADE IS FIRMLY
In most jigsaws, with whom I had to deal, there is provided a cantilever clamp blade relative to the mounting bolt (Fig. 1). Because of this, I think, often encountered distortions of...
SNOW “PLANE”
From a young age was fond of technology and like most boys, dreamed of being a pilot. But, like many, for a number of reasons they did not, and acquired the specialty of a mechanic....
