I'm not a pro, so don't consider my opinion bible, but I'd try some silicone sealer first. If it's a headless bolt, like a Joss, put a small dollop of silicone on the base of a clean weight bolt. Wind it down snug, but not tight enough to squeeze all the silicone out. For a bolt with a larger OD head, smear some underneath the bolt where it locates on the buttcap flange. Unlike glue, you can always undo a siliconed joint. I'd silicone the threads only if the first method doesn't work. The car in my avatar has quite a bit of silicone sealer in various places. I've had situations where rivets pulled thru the aluminum on the big top wing after it got upside down, and the silicone kept the pieces from flying off. If it's good enough for 130 MPH on a rutty dirt track, it oughta be good enough for my wimpy break.
Hope this helps
Bill