steel hollow screw with ventilation valve M10x1.25x19mm, alu anodised natural - M10x1.25 - Thread length 19mm Hollow screw for connecting hydraulic brake and clutch lines to motor vehicles. With integrated innovative quick-release screw for quick, clean and safe bleeding and filling. Single hand operation without external help. Also particularly suitable for the exchange of rubber against steel flex cables. Hollow screw for one ring connection. CNC precision turned part made of anodised aluminum for exchange against the conventional hollow screw. Integrated quick-release screw in nickel-plated steel. With two sealing rings and a detailed illustrated operating instructions. No ABE or registration required!