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Posted: 2/2/2014 7:54:22 AM EDT
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I screwed up and put green permatex on the bolt catch screw on my LR308 lower. The head is starting to strip out, and the soldering iron isn't doing anything to release the thread locker. Do you think putting the entire lower in the oven at 300 degrees will help? Am I going to need to drop it off at a machine shop? |
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Quoted:
I screwed up and put green permatex on the bolt catch screw on my LR308 lower. The head is starting to strip out, and the soldering iron isn't doing anything to release the thread locker. Do you think putting the entire lower in the oven at 300 degrees will help? Am I going to need to drop it off at a machine shop? Spec sheet here |
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Probably, your next step is higher DIRECTED heat.
For this get a large old fashioned copper soldering iron or a steel bar. The old copper soldering irons are large copper tips mounted on a steel shaft with a wood handle. You can also use a larger one inch?? steel bar and grind the end to a flattened point about the same diameter as the screw head. Whatever you use you want it to be massive enough to maintain heat for longer then a few seconds. Heat the iron or the bar to a bright red heat with a torch and touch the tip to the screw head and allow the heat to transfer to the screw. This should break down and soften the Loctite. Before the screw cools, unscrew it with a properly fitting gunsmiths screwdriver. |
| For future reference, Vibra-Tite VC-3 is the best option for fastener retention (except gas block fasteners). |
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I made the mistake of using green locktite on small screws before... I applied it like normal locktite.
That stuff is only low strength when used as directed, after parts are assembled. Otherwise, it's high strength. At this point, you need to find someone skilled with drilling and tapping. Drill it out just smaller than the inner thread diameter, then tap it out... You may end up needing a helicoil. If the manufacturer can fix it, then you can try contacting them, if not, a gunsmith may be needed. |
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Quoted: I made the mistake of using green locktite on small screws before... I applied it like normal locktite. That stuff is only low strength when used as directed, after parts are assembled. Otherwise, it's high strength. At this point, you need to find someone skilled with drilling and tapping. Drill it out just smaller than the inner thread diameter, then tap it out... You may end up needing a helicoil. If the manufacturer can fix it, then you can try contacting them, if not, a gunsmith may be needed. Thanks for the advice, brother. I will contact someone now.
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