Jeff, I don't have the measurements right now but I think it's 3/8" dia. aluminum rod. I picked up an old 16 to teach my kids to sail on and wanted some cheap spares. I picked up a length of aluminum rod for about $5 and was able to make 6 sets of rudder pins. It took me all of about 15 minutes to do. I figure I'll never have to buy/make another set. I also like to keep spares on hand if someone breaks one, Lord knows people have done it for me in the past.
<br>I'll try to get the lengths for you.
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<br>Clayton
<br>H20, H16<br><br>