500 Camel Mk3 Front brake hose

[Wodgedodge]

To try and improve the braking performance on my Camel, I’ve bought a 70’s replica master cylinder with a 14mm piston from RGM Norton (looks similar to the Grimica). Trying to fit it this afternoon, I’ve discovered that the required fitting has a more course thread than the Grimica, so I suppose that it’s a 1.25mm pitch.

I’ve not removed the hose from the calliper yet, but can anyone let me know the thread size and pitch at this end is, so that I can get a bespoke hose made up by Venhill?

Also, I assume DOT 3 or 4 hydraulic fluid?