The local engineering company had a ~1m length of 12mm rod of SS (316) in their stash, which suits perfectly as part of the rudder-hinge-pin-assembly. Cutting 100mm off with the angle grinder was easy. Drilling two holes (4mm) for the split rings with a hand held power drill was, shall we say, an ‘interesting’ thing to do. Smoothing out the ends of the rod with a file was rather tedious. I drilled slightly undersized holes into the rudder and filled the holes with runny epoxy. While screwing the eye bolts in, I added drops of epoxy as ‘lubrication’ onto the threads. When the epoxy has cured, I will mark the locations of the eyebolts on the transom, using the rudder for proper alignment.