I haven't used screened facplates - too expensive and can't see the need. What I did was simply buy blank faceplates, drill a hole and fit an F-Type Bulkhead connector ... this maintains screen continuity - no exposed core at all ... unlike some face plates with screw terminals for the cable (arrrgh !) Bulk head connectors SECON2 ... =A32.63 for 10 !
Screening the faceplate would make zero difference when using these