3 ms·

Lock washers don't do anything. Use threadlock.

• dredmorbius 2y ago
  Lock washers help prevent fasteners from loosening particularly under vibration or similar stress. They're not as effective as LocTite or similar products (adhesive thread treatments), but also don't gum up the pieces. Somewhat ironically, greasing threads can actually result in a more reliable fastening as it permits removal of the bolt or screw and permits stronger tightening which can increase the physical bond. If you really want a reliable fastening, use a retaining device such as a cotter pin or retainer ring, or riveted fastenings ;-) <https://en.wikipedia.org/wiki/Cotter_(pin) https://en.wikipedia.org/wiki/Cotter_(pin)> <https://en.wikipedia.org/wiki/Split_pin https://en.wikipedia.org/wiki/Split_pin> <https://en.wikipedia.org/wiki/R-clip https://en.wikipedia.org/wiki/R-clip> <https://en.wikipedia.org/wiki/Retaining_ring https://en.wikipedia.org/wiki/Retaining_ring> <https://en.wikipedia.org/wiki/Rivet https://en.wikipedia.org/wiki/Rivet>