The hubs on today's most popular props are thick and meaty, unfortunately this leaves the shaft of most motors feeling inadequate, not quite able to reach the special spot on your standard lock nuts. Twisted Quads brings to you the aluminum low profile nylon lock nut. Super light weight, with enough metal to do the job, but not so much that the nylon lock ring can't do it's job! Sold in a pack of 5, because when you only have 4, you're more likely to drop deez nuts.
Available in standard threads (CW) and reverse thread (CCW).
See the photos for an example of how they fit on the shaft, how much shorter they are than a standard lock nut, and how much lighter they are than your standard big-box nyloc nut.