1984 Hunter 37c After the second hurricane in Ft. Pierce I noticed my lower stay chain plate had broken in half. It must have corroded where it passed through the deck. while taking it out I snapped of three of the five 3/8" stainless bolt heads. I checked the upper stay and while tightening it with an 8" ratchet snapped of two more bolt heads. Can’t understand what could have made this so brittle. Have decided to replace all 6 side chain plates. I am wondering, where I can get them. If I have to have them made what stainless should I use. They are 1-1/2" wide 1/4" thick 17" long with 5- 3/8" tie holes and a 1/2" connection hole. The tie down holes are 2-1/2" on center with 5-1/2" to the connection hole. The connection hole appears to have a washer welded to each side. Was considering just using 3/8" thick instead of welding. I was struck by lightning crossing the gulf stream two years prior, a good hit. Wonder if that could have made the metals brittle.