Saxophone neck screw. Fits the following instrument models:
Alto
- Selmer Paris 52 (Series II)
- Selmer Paris 62 (Series III)
Tenor
- Selmer Paris 54 (Series II)
- Selmer Paris 64 (Series III)
Baritone
- Selmer Paris 55 (Series II)
- Selmer Paris 66 (Series III)