Burnewiin Universal MountThe UM6080 was designed primarily as an adapter for mounting downriggers. The UM6080 was designed primarily as an adapter for mounting downriggers. When your downrigger is not in use, you can use that mount location for another boating accessory like a flush mount rod holder or a flag. The UM6080 is equally useful as a BBQ, bait board, or other custom adapter. The 4 hole pattern is a 2. 5" square with 20" threaded holes. Downriggers will need the