Universal Lyre screws in various thread counts, 8-32 for Getzen & some Bach horns; 6-36 for some Holton horns; 6-40 for some Conn & Blessing horns; 3.5 x 6mm for some Yamaha and imported horns. Please check your threads. See my Lyre & Neck Screw reference sheet for additional sizes. I have a separate listing for King horns. Contact me if you wish to verify your model's fit or you need other parts.