precision hexagon nuts 1. tolerance+-0.005mm 2. on time delivery 3. ISO9001 manufacturer 4. custom design welcome Product TypePrecision hexagon nutsMaterialStainless steel, Carbon Steel, copper, iron, brass, aluminum, zinc alloyProcessingCNC turning, milling, drilling, Automatic lathe machiningSurface finishChrome plating, zinc plating, blackening, Nickel plating, Electrophoresis, ...