Master cylinder stripped Flare nut size help?

[andrewwynn]

When I re did my rear brakes I bought the flare nuts on amazon. Two sizes I that case but they are all 4.5mm 3/16 lines. The stock seemed to use 10 and 12 mm thread with 7/16 and 5/8 (11mm didn’t fit) but the replacements used metric nut sizes. Not sure about the size for the line right from master however but you can take the stripped part to a hardware store to thread into their thread utility.

You said “you can flare yourself “ do you have iso bubble flare? They are not single or double flares and you can’t buy iso flare tool in stores best I’ve been able to tell. Can’t even rent.


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