How to keep screws tight?

[PHyrbird]

If the screw is smaller than a #10 (10-32,10-24,M5x.8,etc) I start with purple loctite 222. I have had issues with blue loctite on smaller screws.

Kenton I whole heartedly agree. Purple is specifically designed by Loctite for small diameter screws. Blue or other types lab tested as stripping out part of the threads. Plus heating to cherry temps also pulls any heat-treat from steels making parts unsafe. This info direct from the Loctite seminars.
Members pay attention!! I don't jump up on a stump often, but damage from misinformation is just wrong.

[fast ronnie]

680 is used for mounting a loose-fitting bearing. If you are going to want to get it apart at some point in the future, use something else. I used it on a loose axle bearing on a 4 wheeler years ago, and it never did fail as far as I know. That thing had about .010 slop in it. I pity anybody that tried to take it apart.

[Kev18]

How can I tighten up my forend tenon dovetail? Can I take a punch and make a small burr so it tightens? Or is there a more professional way?

[Mytmousemalibu]

How can I tighten up my forend tenon dovetail? Can I take a punch and make a small burr so it tightens? Or is there a more professional way?

You can peen the edges with hammer and center punch to swell the tenon hole smaller. Your just displacing some metal to tighten it. Start small & light and just one or two spots first.

[Kev18]

You can peen the edges with hammer and center punch to swell the tenon hole smaller. Your just displacing some metal to tighten it. Start small & light and just one or two spots first.

Ok thats what I did, but i brought the gun out to the woods and shot a few rounds, now its loose again.

[flagman1776]

I don't recommend red locktite for anything you might want to remove someday. I worked in marine electronics. A customer with a seriously overpowered boat insisted on wave jumping his 32 foot bass boat (so his buddies told me) which resulted in shaking nice new antennas apart, repeatedly. The base mount was on the side deck with a stand off from the flying bridge. I used lots of red locktite. Everything held so he actually broke the antennas. My boss was unable to remove the broken antenna, so I was sent to reverse what ever I'd done. I couldn't heat it where it was. I turned the boat around, put a pipe wrench on it and a ten foot cheater bar, clear across the dock. It fought me every turn. I cleaned up the threads with acetone and installed the new antenna. And pretended like I didn't know why my boss couldn't get it apart. (If he's reading this, sorry!) I threw the red locktite away.