Scotty 137 SUP Mounting Sleeve 
Stand Up Paddle Board Mounting Sleeve
Here is the answer for those die-hard SUP'ers that must have Scotty products mounted on their board. This socket is designed to be an unobtrusive glassed-in hard mount for all your Scotty post mount rod holders and accessories.
Available as an OEM product or a retail aftermarket product, this is a great solution for paddlers needing a permanent, secure, flush mounted attachment point. Once installed, this mount is absolutely flush with the top of the board.
Rod Holder shown sold serperately.