Sigmo
lvl.4
United States
Offline
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I recommend avoiding even Blue for such tiny screws. Use purple at the most. Blue could snap off the screw, being designed for larger screws, only.
http://dm.henkel-dam.com/is/content/henkel/threadlocker-user-guide%20(1)pdf
"Strength
Low Strength (Purple): Ideal for fasteners <1⁄4" (6 mm). Easy disassembly using hand tools
Medium Strength (Blue): Designed to be removable with standard hand tools on 1⁄4" to 3⁄4" fasteners
High Strength (Red): Designed to deliver high strength on 1⁄4" to 3⁄4" (6 mm to 22 mm) fasteners. For removal, it may require localized heat (>550°F/260°C), hand tools, and disassembly while hot"
I've been using Vibratite VC-3, which is reusable a few times, and non permanent, even on such tiny screws. The only problem is that it needs to be thinned with some MEK to apply it easily in these tiny threads.
https://www.vibra-tite.com/products/threadlockers/vibra-tite-vc-3-threadmate/
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