To nut the connections didn’t loosen during operation of the device, usually put the second (jam nut) or enclose the washer Grover. If such is not at hand or you need to fix the little nut that hard to find a similar washer — rescue improvised, made of… sand paper. Cut out two circles and glue them non-abrasive sides. It remains to be drill — ready and washer.
Recommend to read
PUMP-FLOAT
"No water and no amplitude, and no syudy..." This catch phrase from the pre-war Comedy "Volga-Volga" is very close and understandable to everyone who is associated with the earth, and...
NOT THE CLAMP, AND PIN
For rallying and compression with wooden sticks or planks when gluing, use special clamps carpentry. However, in the absence of them are just a long threaded stud with a couple of nuts...
