For reliability of bolted connection in terms of vibration under the nut usually enclose a split spring washer: its sharp edges prevent the loosening of fasteners.
If any washers at hand was not there, it can replace the ordinary, but old, rusty. Its rough surface will hold screwed in the nut from loosening.
Recommend to read
THE NEW ZEALAND TANK BOB SAMPLE
At the beginning of world war II the threat of Japanese invasion on the island of New Zealand growing by the day. The country was in danger, not having any modern weapons. Under these...
PREDHRADI SPRUCE FOR FINGER…
When you work with small nails a hammer is necessary not on the head and on the fingers. This can be avoided if you use a simple and convenient device — a kind of tweezers. Make it...
