Cylindrical Components with Turned Shafts and Pins, Stepped Diameters, Through-Holes

6061-T6 aluminium and 303 free-machining stainless are the two grades most specified for a set of turned shafts and pins with stepped diameters and through-holes; 6061-T6 suits lightweight drone frame pivot pins and medical device adjustment shafts where corrosion resistance from anodising is sufficient, while 303 stainless is specified for turned shafts and pins in automotive and energy storage assemblies requiring higher fatigue strength and surface hardness for bearing contact. Step diameter tolerance outside ±0.01 mm changes the shoulder fit at each bearing or bushing seat and creates misalignment between the shoulder face and the component seating face. Foshan Zhengshang Precision Hardware (Foshan, Guangdong, ISO 9001, ISO 14001, ISO 45001 certified) turns this set of cylindrical turned shafts and pins with stepped diameters and through-holes at their in excess of 2,000 m² Foshan facility using Swiss machining and milling & turning, with step diameters, through-hole true position, and shoulder face runout checked per your released dimensions at initial sample inspection. Step diameters, through-hole positions, surface finish, and material grade. Applications cover drones, communication, and fasteners.