Fender Cage U-bolt (for boats)

West Marine sells a Fender cage that clamps onto a boat's stanchions.  The U-Bolts in this design are made of a soft plastic and are very thin at the corners.  In my opinion, destined to break.  Rather than take out a new loan to buy something from West Marine, I modeled the broken part, but left the material in where the original has it carved out.
This was my very first attempt at using FreeCAD.