In cases when you want to prevent turning of the screw, screwed into a Board or plywood, I use a very simple way. Of stiff wire or a nail, whose diameter corresponds to the width of the slot of the screw, hollow out a U-shaped bracket and pin it as shown in the figure. Upon entering the slot, it securely holds the screw.
S. DUBINSKY, Kiev
Recommend to read
WORKING SLED
As soon as the first snow fell, it became clear that the house has no need of such cargo winter vehicle as a sled. Child's sled for a long time "went" on a well-deserved rest in a pile...
ECONOMICAL LIGHTING
In large apartments and private homes in the evening and at night it is difficult to follow the dark corridors or staircases to the touch to find the button and turn the lighting. ...