Bach Trumpet - Stradivarius Thread Specifications
Below is a list of common Bach Stradivarius trumpet threaded connection specifications on various Bach trumpet components. This list is helpful when repairing a thread or finding replacement or compatible Bach trumpet accessories.
Bach Trumpet - Stradivarius Waterkey Screw
- 1/4″ Hex Head
- 4-48 Thread
Bach Trumpet - Stradivarius Finger Button
- 6-36 Thread
Bach Trumpet - Stradivarius 1st Valve Slide Trigger
Key Screw
- 1/4″ Hex Head
- 4-48 Thread
Bar Screw
- 3-48 Thread
Bach Trumpet - Stradivarius 3rd Slide Stop Rod
- 2.125″ length (1.75″ threaded rod)
- 0.125″ Diameter
- 5-40 Thread
Retainer Nut
- 5-40 Thread
Post Set Screw
- 8-32 Thread
- 5/64″ Key
- 0.125″ Overall Length
source: various Bach loyalists
source: Mouthpiece Express
