![Nylon-lined pivot screw keys with pivot screws](/sites/default/files/2-col-page/nssk2s_0.png)
Nylon-lined pivot screw keys with adjustable pivot screws in two parts with lock-nuts
Another real asset to our digital world are the nylon-lined pivot screw keys which reduce noise and prevent play of the keywork in axial direction. Adjustable pivot screws in two parts with lock-nuts, specially developed by Püchner, facilitate personal adjustment by the player. Standard on Püchner contrabassoons.