Yes nylock nuts work very well one of my engines uses one and the other has a lock washer between the nut and washer. I always got tired of the nut coming loose because then i'd have to take the spinner cone off and tighten and put it back on. However, if you ever cross thread a nylock nut onto your shaft you'll never get it off. Had this happen on 4 3/4"x 10" carriage bolts on my dock, for some reason they'd cross and it felt just normal but when we tried undoing them we couldn;t get them to budge even with and impact hammer.!!! Cutting 3/4" stainless with a hacksaw is not fun