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! :)

  • can you post a photo of the screw?
    – Peter
    Commented Apr 10, 2020 at 21:26

2 Answers 2


Yes, the screws around that size are usually key guard screws. It may also be a lyre holder screw if your model has one. Look on your key guards for a matching screw head and then look for open holes.



As it turns out, it came from what I think is the high F key (I've never actually used it before)? I went back to where I was practicing and found a small rod-like piece on the floor that I hadn’t noticed before. So, it looks like the screw actually came loose from a rod that connects the high F button to a lever above it. Got it all fixed now!

  • That's good that you found the matching part. In general, if something falls off, stop playing immediately until you find where it came from. Otherwise you risk bending or warping a rod that has lost its end support. Commented Apr 12, 2020 at 13:39

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