I have seen similar images for this screw on other web sites saying Conn Trombone Water Key Screw. Conn Trombone or Trumpet Short Hinge Screw. Length = 22mm.
Deflector Pro by Jazzlab for Saxophone, Trombone or Trumpet
Conn trombone case possibly for model 52H or similar. Look at photos pls.
Conn Conn Trombone Slide Bow Rubber Bumper
VGOL 2x Trombone Slide Cork Bumper Washer 17.5x13x4mm Compatible with Benge Compatible with Conn Trombone Instrument
GENUINE CONN TROMBONE SLIDE BOW RUBBER BUMPER
Vintage CONN TROMBONE DIRECTOR 806414 OLDS 12C MOUTHPIECE CASE EXTRAS
