King 1250 bell screws. Compatible with Conn or Jupiter?

[yemag]

I searched and didn't find any info on this. Are King 1250 bell screws compatible with King 2350 screws? Conn or Jupiter screws? Thanks in advance.

[Dan Schultz]

I searched and didn't find any info on this. Are King 1250 bell screws compatible with King 2350 screws? Conn or Jupiter screws? Thanks in advance.

The King 1250, 2350, 1280, 2370, and 2380 sousaphones bell screws are all the same. They have 5/16-24" threads.

The new Conn sousaphones are actually Kings except for the 20K.

The pre-1987 Conn sousaphones and present 20K sousaphones have 1/4-20" threads.

Don't know squat about the Jupiter ones other than they are probably metric.

[yemag]

Thanks!