The handles on one of my cabinets had a missing screw, so the handle sort of flopped around.
Finally I got tired of this, took out the other screw and took it down to the Ace Hardware Store.
The screw was visually recognized as a standard one for doors. Supplies of that same screw were available at the store. One cost me 17 cents.
I took it home, along with its mate, and the door handle doesn’t flop any more.
We’re lucky to have that store in Kingston!