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.
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THE SHELF ON THE LADDER
Sometimes when working on a ladder is required to extend, trim some detail, and to use the necessary tools. Great convenience will create a removable stopni-workbench, which is easy to...
MICROMELIA
After reading in the "M-K" on the continuation of the contest "Small mechanization", decided to take part in it. I propose a simple and compact micromelic. About the size can be judge by...
