Permatex 24024 Low Strength Threadlocker Purple, 6 ml Tube

The weak strength one is good for adding more friction to threads that can loosen by themselves. You may need to apply, wait a day or two and then apply again.

Profesional relojes. Para fijar roscas de armis con tornillos.

Great to fix sunglasses, the screw that keeps popping out is held in place against vibration and other forces

This stuff works great. I use it a lot. It works better than the vibratite brands version and costs less than the loctite brand version. Been using it for years. It’s replaced blue loctite for most things for me. Absolutely worth the money.

Great for keeping those pesky tiny knife screws in place. I purchased these to keep the pivot screws from coming loose on my various folding knives from constant use, and so far, it has kept them from doing so for quite a few months. just apply to the threads of the screw, then put the screw in and adjust to the tension you want. let it sit overnight to set and you are golden. No more loosening pivot screws from hard use. The added benefit is that since this is low strength, if you want to pull apart your knife for a cleaning or maintenance, its quite easy to undo with a screwdriver without stripping the screw head. The strength is more than enough to keep the vibrations of opening and closing from backing out the screws.