It is very difficult to adjust the gap accuracy of the linear guide under the traditional mode. If it is not maintained for a long time, it will cause aging. If it is maintained, the accuracy of adjustment after disassembly becomes difficult and complicated. At this stage, the new linear guides and sliders can use side bolts to adjust the accuracy of the gap. Thereby greatly reducing the workload and saving time!http://www.xbrtballscrew.com/lock-nut/