Okw metal round nuts for roundwingspindle knobs from 10 okw a 62 07 009 this okw a 62 07 009 metal round nut for roundwingspindle knobs from 10 oslash has been designed for mounting of potentiometer at the assembly kitfront panels manufactured to fit under the knob and nut cover okw a 62 07 009 round nut for potentiometer m7x075 135mm