Aluminum Sill Plate for Service Cable 3-2 with Screws
https://dev.nsiindustries.com/product/aluminum-sill-plate-for-service-cable-3-2-with-screws/
The Bridgeport Aluminum Sill Plate for Service Cable 3-2 with Screws prevents water from entering a structure when used with a sealing compound. The screws can be used to fasten the sill plate to the surface.