Are there any lead screw preparations?
The lead screw (mainly the UN threaded rod) you buy may be a little rough with burrs and may need to be sanded and polished before use with any leadnuts to reduce wear of the leadnuts. Using a lathe is recommended, if a lathe is not available, you can insert the end of the screw in a power drill to sand and polish it. Just remember, the smoother the screw is, the longer your leadnuts will last! Generally the better quality ACME screws are very smooth and need no prior polishing.
