MM Stingray Control Knob shaft size

[wal4string]

Hi, can anyone tell me the shaft size of a Stingray Control Knob. Luminlay have just started to produce a control knob with a numbered ring. Unfortunately only come in 6mm shaft, not sure if this will fit.

 

[Rod Trussbroken]

They are 1/4 inch.

 

[wal4string]

Many Thanks.