Firstfives.org

Anybody know what thread pitch and length the brake bleed screws are for front and rear calipers?

Or happen to know of an interchangeable part I could grab locally? Seems like a dumb part to special order, not to mention the cost. Surely there's a cheaper option from another car that works?

Threads are M7-1.0mm. I have two lengths in my stash. Total lengths are 25 mm and 38 mm.

Is there no dealership in your area? those were also used on e28 , 24 ,23 and some more.

Closest dealership is a 5 hour drive one-way unfortunately.

I wasn't sure if they were the same as those used on E28/E24/E23, some sites listed the fronts as a different part number due to the 4 piston calipers.

For future reference if anyone searches and this comes up:

Dorman #13905 Brake Bleeder Screw
M7-1.0 X 34mm

It will work for front and rear. Differences are wrench size is 8mm instead of 7mm and the nipple seems a bit larger.

I strongly suspect the size, taper and thread pitch are the same, but length may be different. If you're really a 5 hour drive, try to figure out what length it is and PM me, I may have something in my absurd stash of stuff.