Westy rear interior light switch nuts?

Hi all
On the 71 Westfalia rear interior light, there are 2 push button switches to enable you to turn the light on & off from the rear.
Does anyone have any nuts that hold these push button switches into the light housing - or tell me where I can get them.
thx

 

If you search on Amazon "White Push Switch On/Off 2 AMP" you can still buy the whole switch.

 

That's what I did when I refurbished my light

 

Thx guys.