What thread size for brake calipers ect.

[Aussie John]

I checked with a supplier of braided hoses and the thread size is 10mm but my car is 3/8 unf, were there 2 options? cheers, John/

[Adrian@]

M10 X 1.0 is the size (3/8 will go in if it is forced) A@

[phillpot]

Should definitely be metric, M10 x 1mm ? Presume you have standard ATE/Ford sliding calipers?


3/8" male will screw into 10mm female but feel loose

10mm male won't screw into 3/8" female without an impact wrench!

[Aussie John]

I have tried to make the 10mm fittings go into the caliper and the female nut on the copper pipe but there is no way it will fit, I am quite frustrated with this, I am going to try both fittings on a caliper from another tvr tomorrow, cheers, John.

[phillpot]

Photo's ?

Bleed nipple and hose connection should be same thread, will bleed nipple screw in where the pipe goes?

[Aussie John]

Hi Mike, the bleed nipple was 10mm but would not screw into the pipe position, we decided to ease a 10mm tap in and hey presto all problems solved. I guess the use of 3/8 unf fittings chewed the thread just enough to cause the problem, thanks to everyone who offered advice, cheers, John.

[TwinKam]

I do love a happy ending.

[Aussie John]

Hi Mike, the bleed nipple was 10mm but would not screw into the pipe position, we decided to ease a 10mm tap in and hey presto all problems solved. I guess the use of 3/8 unf fittings chewed the thread just enough to cause the problem, thanks to everyone who offered advice, cheers, John.