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
WALL SOUVENIR
"Modelist-Konstruktor" awakened in me a thirst for innovation, the desire to do something with their hands. One of his simplest works, I would like to submit to the judgment of the...
“EAGLE” THE FIRST-BORN RUSSIAN FLEET
Will have to make a reservation at once — reliable information, which is not causing doubts and questions about the shape and design of the firstborn of the Russian Navy, very little....