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
Motorcycle in the trunk
Before starting to build the micromotorcycle, I spent a long time drawing various layout options, trying to anticipate on paper all possible errors and miscalculations that could arise...
SELF-PROPELLED PLOW
By itself, the plow actually riding. But it has become possible to plow without a horse due to all the same self-propelled chassis, which we used for the potato digger. This unit is...
