Fits boats with 1-1/4" shafts only.
NOT for 1" or 1-1/8" shafts! Only fits 1-1/4" - 7/8-9 thread
Nautique G-boats, some Malibu/Axis. Brass nut with nylon insert 7/8-9
Recommended over a castle nut, the Nylock Nut will cover the hole for the cotter pin BUT YOU WILL NOT need the cotter pin with this nylon lock nut.
Many of our customers have lost their propellers due to a failed cotter pin/castle nut combo!
Not with this Nylock Nut!