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I had a 442 for a few years. Then I sold it, but missed the J-frame. I decided, just for a change, to get the 642 this time around. When dry firing (with Snap Caps) to smooth out the trigger a bit, I noticed the upper left hand screw on the side plate was backing out. I tightened it down and after only about 15 dry fires, it starts backing out again. Every time. Some people have recommended a drop of blue Loctite, others have not. My question: will Loctite just hide the real problem? Why would this screw keep backing out? I bought this gun brand new and it has never been fired except for the factory test round. Should I send it back to S&W? I never had this happen with the 442.
I noticed the upper left hand screw on the side plate was backing out. I tightened it down and after only about 15 dry fires, it starts backing out again. Every time. Some people have recommended a drop of blue Loctite, others have not. My question: will Loctite just hide the real problem? Why would this screw keep backing out?
A very small amount of blue loctite will resolve this issue. I would consider that to be an acceptable solution. I am not sure what causes some screws to want to back out, but it does occasionally happen.
If you don't want to use loctite, you could certainly call S&W. I am not sure what support will say about this issue, but it is quite possible that they will issue a shipping label if you let them know you are unhappy about the situation. However, I would still recommend that loctite will provide an effective resolution to the problem.
Also, even if they will accept the gun for warranty, I would recommend firmly tightening the screw and then shooting the gun a bunch before returning it. That way, if you discover any other issues, you could get them all fixed at once.
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