The little guy - Screw for Group head Shower
This part can be replaced by you at at home. If in doubt please contact us.
M4 X 6.5mm buttonhead shoulder screw. Screw for Group head shower.
The screw is 3 mm x 6.5 mm long with a low profile head to avoid puncturing the coffee and an unthreaded section to prevent the head seal from being squeezed.