Hello my fellow tin-boaters! I'm new to this website, forum and boats in general, so, please bare with me. I was recently given a 1967 Wards Sea King 12 ft. aluminum v-bottom boat along with a Shoreline trailer and "The Fisherman" by Minn Kota 37 lb. thrust trolling motor.Turns out it's my first boat I'm in the process of fixing some of the essentials so I can at least get her out on the water to do what I love to do which is fish. I have plans on modifying it slowly but surely. One immediate question that I have, among the probably hundreds I will ask on this forum , is in regards to the drain plug. The drain plug hole is located near the bottom of the transom. It looks as though the previous owner may have modified/installed a custom drain plug fitting in the transom. The opening of the drain plug hole on the outside of the transom and on the inside of the transom protrudes out of and into the boat, respectively, about 1/2 inch. In other words, it is not flush with the inside or outside of the transom. On the inside of the transom where the drain plug hole protrudes into the boat about 1/2 inch, 3/16 inch is threaded ON THE OUTSIDE OF THE TRANSOM HOLE, presumably, where a drain plug would screw on. The problem I'm having is locating the correct drain plug that will thread on. I did try using unthreaded plugs to plug the hold. They were 3/4 inch (too small even when expanded all the way) and 7/8 inch (too big) Moeller Snap-Tite drain plug but clearly they weren't the correct size/type and there was nothing in between a 3/4 and 7/8 inch. [links]