Loctite Stick - Blue

Locktite says:

The familiar blue Loctite® Threadlocker is now available in a convenient solid stick form! No more squeeze bottles to leak all over your toolbox. Just extend the stick a little and apply the waxy compound to the threads. You can even apply it in advance and assemble the parts later.

This medium-strength formula allows fasteners to be disassembled with hand tools yet prevents loosening under normal circumstances.