?? Which nuts are you talking about, my miss Elam( convert bud boat) has 4 screws that bolt the motor mount to the hull this is thread , no nut. and the the motor bolts to the motor mount without bolts.

When i upgrade my Miss Vegas to a .21 I'm going to hand down the .18 to the Miss Elam so i will also be converting my, I'm also thinking about trying to use all the miss Vegas hardware on my Elam. Not sure i want to put that much work into it.