56 Buick brake bleed screw size?

[56 Buick]

Hi all, does anyone know the size required for new brake bleed screws?

 

I can't seem to confirm it anywhere.

 

Thanks

 

Drew

[old-tank]

Size varied with the maker of the replacement wheel cylinders...and some of the current replacements are metric.  If you need replacement screws, you probably need new cylinders.  Replacements are cheap enough (RockAuto).

[Frank DuVal]

If you unscrew the old one there are only a few sizes to choose from. See the list at Brakequip:

 

http://brakequip.com/products/hardware/bleed-screws/

 

Or just buy this kit from your FLAPS (friendly local auto parts store), and have an axle set. But two sets for a whole car.

 

https://www.dormanproducts.com/p-17523-13949.aspx

[56 Buick]

Thanks all

[Beemon]

 auto parts store is hit and miss. My right rear is 10mm and my right front is 8mm.