Loctite Threadlocker 242 Medium Strength
This is the thread locker you need to secure the screws in your sight sets, tension screws in your Ready Tactical holsters, AR15 gas blocks, and numerous other applications where you can't have your fasteners working loose until recoil or vibration.
Here's the technicals:
Loctite® 24205 242® Mil Spec Medium Strength Blue Threadlocker, 0.02 fl. oz.
Top Pick Loctite® 242® Mil Spec Medium Strength Blue Threadlocker is a general purpose, removable threadlocker for fasteners between ¼" and ¾" (6 to 20 mm) diameters. Controlled lubricity for accurate clamp loads. Parts can be separated using hand tools. Mil Spec: Mil-S-46163A Type II Grade N. ASTM-D5363: Group 3 Class 2 Grade 1, NSF P1, CFIA.