What are the uses of a shoulder screw？

The shoulder screw relies on its unique structure - the thread, the optical axis shoulder and the head 3 part work together to achieve the value of "1 nail multi-energy." The threaded part provides a stable and reliable locking force, the optical axis shoulder can be converted into a positioning reference, a rotating fulcrum or a sliding guide according to different application scenarios, and the head assumes the role of installation and fixation. It is this multi-functional integrated design that enables designers to greatly simplify the structure in the design of automation equipment, precision instruments, robot joints and molds. Shoulder screws eliminate the need for additional shafts and slots，, which not only reduces the complexity of components, but also significantly improves the assembly efficiency and operational reliability of the whole machine.

 The reason why shoulder screws can further push "simplification" to "precision" lies in the high performance of the shoulder part. When used as a positioning element, the optical axis shoulder can be matched with the matching hole to achieve micron tolerance, thus ensuring the extreme accuracy of the position of the parts. When used as a rotating fulcrum, the hardened shoulder surface can be directly matched with the bearing to achieve smooth operation with low friction and wear resistance, even without additional sleeve. Even in the application of sliding guides, shoulder screws can provide rigid support for linear motion and ensure long-term stable repetition accuracy.