Thread-locking fluid

Thread-locking fluid is like a glue that you put on screws or bolts. When you screw the bolt or screw into something, like how you screw a lid onto a jar, the thread-locking fluid acts like a lock so that the screw or bolt doesn't accidentally loosen up or come out. It's kind of like putting a lock on a door to keep it from opening when you don't want it to. Thread-locking fluid helps keep everything together so that it doesn't fall apart!