KN106 Turning knob:

KN106 turning knob
This type knob is black color with white line on the top of  knob. And the line is continue to the housing for great visibility.
The knob inner lock type which it tightened up onto the pot shaft, so it will work on splined, smooth or D shaped shafts.
There are one kinds of shaft for this knob.
Original 6.0mm shaft for inner lock type.
Black color is available.

Pls check the datasheet below:

Material: Bakelite Shaft: 6.0mm
Color: Black Height: 18~18.4mm
Inner diameter: 19~35mm Body Diameter: 21.5~38mm
Operating Temperature: -25℃~+85℃ OEM or ODM: Available

KN106 6.0mm: