Anything to spray/wait/rinse off rust in lieu of scrubbing?

Energy One

No H2O

Active Member
I'm getting rust in the heads of the allen bolts, among other hard to reach crevices.
Rather than finding something small to try and polish off the rust (that only ends up spreading the polish out of the intended area), is there any type of rust remover that's: spray-on, wait, rinse, and done?