What size threads junction block

[califkid_66]

Does someone know what size threads the junction block are I want to make new lines from the junction blocks to the master
Thanks that’s the only information I need to finish up the brake system

[BDA]

I believe they are 3/8 - 24.

[jbcollier]

Yup, 3/8NF.

[califkid_66]

Both of them? I know that the old master for front was 7/16 20 and back was 3/8 24
I need to be sure I don’t want to damage the threads but if they are 3/8 24 that would be great

[BDA]

Yes, I believe they are all 3/8 - 24. That is also the thread for the brake light switch. If you still aren't sure, you can always see if a 3/8 - 24 (or as JB says, 3/8 fine thread - same thing) screws into it.

I suspect that the M/C is using two different threads to distinguish between the front and rear circuits. 3/8 - 24 is the thread usually associated with 3/16" tubing.

[califkid_66]

Ok thanks so my new master is installed m10 bubble flare the only thing left was the brake lines
So the plan is to get two adapters 3/8 male inverted flare to female m10 bubble flare put the adapters on the junction blocks then run pre-made metric m10 bubble flare brake lines from junction to master
This is going to keep it simple
Thanks again for your help