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
LAND THE BOATS START
In the February issue of "Modeller-designer" we met article on the development of a new class of car — unmanaged vetrogonov. Don't know how reacted to the most interesting suggestion of...
MINI TRACTOR: FROM SCHEME TO PLOWING
"Manual labor is performed by machines!" — under this title was published in our journal materials from the all-Union conference VISKHOM named after V. P. Goryachkin (see "M-K", 1982, №...
