Transmitter flight switch thread identification or replacement switch nut

[jameswattsjr]

I have a phantom 1 remote model sr6. I am trying to replace flight switch nuts with blue annodized nuts. I have spektrum nuts i could rethread if i knew what the thread on switch shaft is or maybe the futaba switch nut set would fit. Please advise what nut will fit or thread size of switch shaft. I have hunted everywhere without any luck

 

[MotorCycle-Man]

Actually........as thin as the hex nuts are......i cant even imagine trying to hold one to tap it..let along drill it to retap it.........Good Luck .