Need to get some solid rivets for the factory ones I need to remove to get the transom swapped out. I haven't removed any of the factory ones yet, but wanted to see if any of you guys know what size I should be ordering. It's on a Tracker Sportsman 16'. I'm thinking 3/16" x 1/2", but I've never messed with rivets before so I really have no idea. Maybe I should remove what I need to first and then measure the holes??