Big7
The Oracle
I don't know who told you that- but it's wrong.I just learned in the last few months the Loctite you use should be based on the size of the screw, not the strength you want. Smaller screws should use pink (low strength), mid sized screws should use blue (mid strength) and large screws should use red (high strength). More or less a function of the torque the screw should be tightened to.
I can't remember where the screw size cutoff is for each type, but I bought a bottle of pink to use on scope base screws and the like.
I also only use Loctite on the base screws. Never use it on the ring screws, just torque with my Fat Wrench.
Rosewood
The "color" or strength LocTite you use is based on what you want it to do.
It's a little confusing now because some manufacturers have come up with their own color coding system. Whereas, the companies that started after LocTite copied their color codings.
The LocTite website will tell you all you need to know. If you can't find the exact info you need on line, PM me or post it. I got you.
Attached is a pic of a Harbor Freight copycat.
You can see the "blue" is "Semi- Permanent" as it is equal, roughly to blue LocTite.
You can get in bad trouble real quick guessing which LocTite to use.
.https://www.loctiteproducts.com/en/know-how/build-things/threadlocker-red-or-blue-which-ones-right-for-you.html#A
Last edited: