anyone ever install these on their boat?

It's a piece of cake.

Just have a good plan before you start drilling. Make sure you can get the nut and washer on the bottom.

Easy install and look nice. We got ours from Trick.

Fred also has some really cool springloaded pop out cleats, put them on my tiger and love them, just tap it and it pops out, hnag the bumper then push in to close them.

double nut them............m.m........