Really sorry but can’t find them! Possibly 7/16 unf.
Thanks for this and no worries about not being able to find them, I’ll get in touch with this chap once I’ve measured it upLooking around this is probably what you’re after, just hopefully it’d be long enough. I’d assume same fittings as the Commer as likely uses the same or similar parts. Reasonable price too.
He probably makes them so if contact Arrow5spares and know the length he’ll probably let you know this size or even knock one up.
Good Luck
https://ebay.us/m/6lDle5
Ah in that case I’ll be fine then, as my leak was on the other end of the line. Once I’ve got the new line it should just all work fine. Contacted the person Jim recommended so hopefully he can sort something out for me.The rubber boot on the end of the slave is to keep road dirt out, it's not a seal as such. If there's a leak then it's coming past the seal on the piston inside the slave, which isn't good.