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
ROTOCUT CHAMPION
The name of the athlete rakatomalala Igor Ponomarev, that is, "hearing" and "rocket scientists" and, hopefully, our readers. His technical model development are of genuine interest. For...
ALL-SEASON, AWNING
Rainy and windy weather always gives a lot of trouble. But if an adult can shelter from the elements under an umbrella, the child sitting in a wheelchair, remains unprotected. I propose...
