It is known that in friable material such as drywall or particle Board, the screws holding bad and under load falls. However, it will bind details not worse than a bolt with a nut, if properly prepare the hole for the screw with epoxy. For this purpose the screw is pre-coated with any oily grease (tsiatim, grease, vaseline), and in a hole dug in “epoxy”. Then screwed the screw before final curing of the resin several times to twist as if forming for him the thread.
A. KUZIN, electrical engineer, Ekaterinburg
Recommend to read
LEAST FAVORITE SHIPS OF THE KAISER
1888, the coronation of Wilhelm II, last Emperor of Germany, claim to very much, which has plunged his country into the bloodiest in the entire history of the Earth, war ended in...
VEHICLE THE AGE OF CRISIS
Little micro-car BMW ISETTA. This has happened more than once. Crest of the economic crisis, the Great depression or the post-war ruin — and instead of the heavy limousine with big...
