Here's how I fixed my loose kitchen hardware using just one product, Krazy Fix Fast glue.

The screw hole was too big, so I had to fill the hole and I chose Krazy Fix Fast glue.

It has a precision tip applicator. It fit perfectly in the hole I filled it, I let it dry, I sanded it, and then I added my hardware back on. And now if it's perfect and snug, no more loose hardware thanks to Krazy Fix Fast glue.