Smooth Knob 0.250" (6.35mm) Shaft with Line on Top and Side Black
SparkFun
KNOB KNURLED 0.250" METAL
Apem
Fluted Knob M10 x 1.5 Shaft with No Indicator Phenolic Black
Davies Molding
Smooth Knob 0.236" (6.00mm) Shaft with Dot on Top Aluminum Natural
NTE Electronics
Ribbed Knob Shaft with Line on Top and Side White
Adafruit Industries
SELF-ASSEMBLY T HANDLE KNOB 1.25
Essentra Components
Knurled, Straight Knob M4 Shaft with No Indicator Acetal Black
Essentra Components
KNOB FLUTED 0.250" PLASTIC
Ohmite
KNOB KNURLED 0.250" METAL
Apem
GREEN MICRO POTENTIOMETER KNOB -
Adafruit Industries