This mount is designed to help center the mounting block onto the rail. With a channel milled down the center, simply set the block on your rail, level it then drill your holes for the screws. This block also gives a much more stable mount for your rod holder and your standard Jon Boat gunnel rail.
- Made of 6061 Aluminum, not cast.
- Milled channel for alignment and stability
- Available in 3/8", 1/2", and 1/2" Left Hand thread
- Comes with two(2) #12 stainless wood screws, 1 1/4" long.