I've got some mini exhaust bobbins. They looked like M8 but an M8 nut jams (different pitch). I suppose it could be a fine thread (but it doesn't look like it is!!)....

Presumably minis were imperial?!?!?

most likely 5/16 UNF

Yup. That sounds about right.

Cheers! Just checked- 5/16 UNF

http://www.sumobuild.co.uk/chapter15.htm


[Edited on 12/7/09 by BenB]

Deja vu....

Linky

Spooky