This is for load-bearing bronze screws in an oak frame, carrying a heavy oak door.
Four of the screws were removed momentarily for maintenance work. Two of the screw holes may have been stripped slightly when the screws were around 3/4 of their length out of the frame.
A dowel would not be an option at this stage, because that would mean undoing some of the maintenance work. I was thinking of several options:
I was unsure what this last method would do to the 3/4 of the threads that are still viable. Does it risk damaging the unstripped threads, or would it tighten and secure the threads in situ?
Which option would be best?
I would go for the dowel method.
Support the door, move that face of the hinge out of the way, drill, and fit dowel with glue. Let dry, pilot drill and then use good screws.
Out of the three listed options I would use #3 as it is closest to the dowel method. I would also use longer screws if possible so that if only part of the hole is stripped the extra length can get more grip.
I have used tooth picks and matches with glue for many years. With hard wood I use toothpicks as they are hard, match sticks with the head cut off work will work but I use those on soft wood like pine. I squirt the wood glue in push in however many I think I need then wipe the excess and insert the screws
Toothpicks. As I've previously answered here Slightly different question, so not a duplicate. But answer is the same.