What size are the Screws that screw into the Magnets on the generator

Oct 16, 2008
1,706
9
43
southern IN
One of the Screws that screw into the Magnets on the generator came out, and broke the key. So if any one knows what size they are so i can pick up another and get my blaster running again. i have already looked on bike bandit and the screw is not listed.
If you have a junk generator laying around, i will buy the screws if you still have them
any help would be greatly appreciated