Segmented bolts, also known as step bolts or step bolts, belong to non-standard customized fasteners. The shaft is designed with multiple stepped structures of different diameters, which are different from ordinary diameter bolts. They can play multiple roles such as positioning, limiting, spacing, and load-bearing. They are commonly used in equipment structures with limited assembly space, precise positioning, and layered compression. The product covers single step, double step, and multi step segmented bolts, with various head styles such as hexagonal head, inner hexagonal head, round head, flange head, etc., which can be matched with different assembly conditions according to needs. The raw materials are selected from high-quality carbon steel, 40Cr alloy steel, 304/316 stainless steel, and other materials, with strength covering high strength standards of 4.8, 8.8, 10.9, and 12.9. Using cold heading forming combined with CNC precision machining, the outer diameter tolerance of each segmented step is precise, and the step transition is smooth without burrs; The threaded section adopts high-precision rolling technology, with uniform and full tooth profile, stable bite, and long-term vibration that is not easy to slip. High strength segmented bolts undergo quenching and tempering heat treatment, achieving a balance between overall toughness and tensile strength. They are resistant to deformation and fracture when subjected to heavy load compression and repeated disassembly and assembly. The surface can be treated with anti-corrosion treatments such as blackening, electroplating, hot-dip galvanizing, Dacromet, stainless steel polishing, etc. The coating has strong adhesion and effectively resists water vapor, dust, and slight acid-base corrosion. It is suitable for indoor equipment, outdoor machinery, and mild corrosive environments. The product undergoes full size inspection, hardness testing, tensile testing, and thread gauge testing before leaving the factory. The step positioning size is precise, the assembly positioning is not offset, and the interchangeability is stable. Segmented bolts, with their stepped limit structure, eliminate the need for additional positioning sleeves and spacer fittings, simplify the assembly process of components, improve assembly efficiency, and are widely used in fields such as engineering machinery, mold fixtures, automation equipment, photovoltaic components, automotive parts, mining equipment, instrument chassis, and fixtures. Conventional ladder specifications can be quickly supplied in stock, while supporting customized non-standard segmented bolts such as multi ladder, special pitch, extension rod, and irregular head according to customer drawings and samples, with precise positioning and reliable fastening, reducing overall assembly costs.