Composed of bolts, sleeves, and nuts, the main purpose is to provide sturdy anchor points in building structures. This is achieved by inserting the bolts into the substrate of the building for fixation. On the other end, the threaded column connects to structural components such as machinery, brackets, beams, and columns. The sleeve is used to expand the anchoring area, providing reliable support and fixation. Widely used in construction, bridges, roads, machinery, and other fields of construction and manufacturing.