Help! Lost the nut and washer of pickup selector switch of Ernie Ball Music Man JP7.

[BlackDranzerr]

Hello! I am from India and I own a Ernie Ball Music Man JP7. During a gig the nut and the washer of the pickup selector switch might have gone loose and I lost them. Does Music Man sell official replacement nut and washer? or could the exact same parts be available anywhere in India? I emailed them regarding the same but haven't received any response yet. Such small parts may not be a big deal for some but honestly I am not having peace of mind lol. Any leads would be appreciated. Attaching photos for reference.

 

[jayjayjay]

In the US something like that could likely be found at a local hardware store. Does India have comparable shops?

 

[BlackDranzerr]

In the US something like that could likely be found at a local hardware store. Does India have comparable shops?

I did found a nut that fits atlast after searching in almost every local hardware and electronics store but it's a cheap one I guess it's only a temporary fix (also I couldn't find a washer.) Even on online stores such as amazon this kind of nuts and washers are not available in my region.