

WD-40 is not a lubricant, it can do it short term, but makes things worse long term.
WD-40 literally stands for Water Displacement - Formula 40.
Its to keep mechanical components hydrophobic so they don’t rust or otherwise degrade due to the presence of water.
For locks and keyways, you want powdered graphite as a lubricant. I keep a small tube (puffer style) in my pick kit if needed.
As a formally certified pharmacy tech(no longer live in the sate I was certified in), take the recommended dose. Please.