Hello, I have an M35, which has six 3/8" carriage bolts that pass through the hull to fasten an internal chain plate "bracket" to the hull. The existing bolts were 3" long with about 1 to 1-1/4 in. of thread. Everything I can find in 316 SS in this length is fully threaded. Does anyone know if the original bolts were fully or only partly threaded? I can see that the chain plates have been accessed at least once before, but am not sure if these are the original bolts. I want to replace them and wanted to keep the same minimum diameter at the hull-bracket interface, which was a full 3/8" with the current bolts. I'll lose about a 1/16" of diameter if I go with fully threaded carriage bolts. Anyone know if Morgan used fully threaded or have a source for partial threaded carriage bolts?