Looking for chrome 12mmX1.75 flat bottom (seat)/closed end lug nuts to work on either the Lightning wheels or FX4 wheels w/12mm lug studs.

Any help/source greatly appreciated.

 

Well I'm going to answer my own question in case anyone else has the same issue...

Apparently Gorilla brand makes an adapter (conical to flat) washer (part#79916) for use with the standard chrome, closed-end 12X1.75 lug nuts (part#41168HT) for 97-99 (& some 2000) Ford trucks.

I found both as a set (of 20) on eBay for ~$60

[Putting 17" FX4 wheels on my 2000 w/12mm lug studs].