The "US Spec" Rocket commercial screw is a flat-head version of the group screw that secures the screen and diffuser into the group. For those who prefer a flat head group-screw, this US Spec Rocket Commercial Shower Screen Screw will secure the screen and diffuser into your Rocket Commercial Espresso Machines' grouphead, but is compatible with your stubby flat head screwdriver.

Rocket Espresso Commercial machines come from the factory with a 3mm hex or allen-key style shower screen screw. However we received enough requests for a flat-head version that we have made one available. Either option will do the job, simply a matter of preference.