La Pavoni Lever Boiler cap base in brass includes heat resistant VITON green O-ring also.
Suitable for personal projects, where the users make their own caps from wood or other materials.
We have the same part but from stainless steel.
Upper thread is M12 x 1.75 mm.
Upper thread length WITHOUT the conical shaped edge: 13.3 mm.
Total length of the upper thread PLUS the conical shaped edge: 18.3 mm.