You can buy stainless steel strip or brass strip from a steel stockist at a very reasonable price though it is not D shaped.It is fine for cruising. I put wide strips of stainless on the bilge keels too as I cruise weight is not a problem. degrease it well and as well as screwing it bed it in Sikaflex then it will never come off! Make sure you filll all the old screw holes as a leak here is a b….r to find!! Good luck Robert