I am talking about the thick one with the coarse threads, and you need a 13mm socket to work it. I have never seen it used on anything else than the Victron busbars.
Have lost a couple down there where the sun dont shine…
If you mean the lynx Busbars: these are M8 not M6. Same with the battery connectors of the various Multiplus.
M8 flare or flange nuts. -->> Amazon
No these are M6, with outside dimensions as an M8.
Product name is “Victron Busbar 150A 6P + cover”
M8
Just use normal M6 nuts.
It’s not M8 in that case.
M6 with 13mm hex head ?
Not in my world 