I have a Jupiter alto saxophone, and in the middle of practicing I suddenly heard something fall into the bell. It turned out to be a small screw. I scoured the sax trying to find an empty hole but was unsuccessful. I'm still a beginner and don't know all of the keys, so it's also been hard for me to test where the screw might have come from. I was hoping someone might have some suggestions for me to figure out where it goes.
It's got a circular head with a flathead line in it. The diameter of the head is about 6mm, and the length of the screw is around 7mm. After doing a little research, I'm guessing it may be a flower bar screw?
Thank you so much, any suggestions or resources would be much appreciated! :)