I have a new fortrex 112, only 15 hours on the boat and not many more on the troller. Anyway I thought I had some line or moss in my prop so I went to remove it for the first time. 1/2 turn and galled tight, very tight. I sprayed oil and worked and worked it and when it did come free the threads were badly damaged. I used a thread chaser and ran it several times until clean but the back 1 or 2 are almost gone. Put my new nut on and it snugged but didn’t lock down. Took it back off, added a 2nd washer and it tightened up good. I know I don’t want to leave it forever but is there any reason it wouldn’t last the year?