The purpose of staking the nut is to prevent it from loosening with extended use. It will take a little extra effort to remove it the first time as the stake part has to be bent or broken off (this happens when you unscrew the nut). After disassembly, use a fine file or emery cloth the smooth the are where the stake was. You can use a LIGHT thread locking compound such as blue Loc-tite if you are concerned with the nut working loose. Use it sparingly. You could also stake it again. Just use a small punch and line up with another area of the nut.