you're confusing the 2.
Loctite is a thread-locker which is applied to the threaded portion of the screw.
Basically it is sort of a metal-metal adhesive, which resists the rotation of the screw.
But once some force is applied (eg. screwdriver), the common type of Loctite will break its hold and flake off like powder. It's use-once only. If you are re-tightening the fastener, need to re-apply the Loctite.
Small bottle of Loctite is not expensive, and can be shared between a couple of friends. Not advisable to use super glue
To add on, when buying Loctite, there are several types, some are very strong and very hard to remove once set. So ask the store for the non-permanent version. Ask for Loctite BLUE. Loctite RED is very strong and meant for permanent applications. If you find Loctite BLUE still a little too strong, you can go for Loctite Purple.
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