Vixen Tachometer Mounting

[ATE399J]

OK, so here's a bit of a challenging question for all you Vixen geeks:-

I've re-assembled pretty much all of the dashboard on my Vixen project but I'm missing the knurled nut / threaded fastener that secures the 'U' bracket across the back of the unit thus holding it in place.

The threaded stud is bigger that all of the others, does anyone know what size / thread it is?
(Cortina Mk2 1600E tacho).

Thanks,

Phil.

[ATE399J]

Thanks all, I'll try the 2BA and if that doesn't work I'll come back and beg a bit of shed hunting.

[ATE399J]

Thanks for the info guys....