Model Number: AA-186 Key Specifications/Special Features: Products available:Bolts, screws, nuts, rivets, stem nuts, shafts(axles, spline shafts, dart shafts),gears (pinions, wheels ) bearing, bearing seat, spring, connector, socket, bushing, push-button and moreSurface finish:annealing, natural anodization, heat treatment, polishing, nickel plating, chrome plating, yellow passivation, gold passivation, galvanizing, satin and moreProcessing method:CNC machining, turning, milling, drilling, grinding, broaching, welding and assemblyUsage:Apply to electrical appliances, electronic products, medical equipment, new energy sources, automobile, motorcycle, bicycle, electronic toys and decorative lighting.