MATERIAL: The female thread nut knob is made of plastic and copper, durability, corrosion resistance and insulation, not easily deformed. DESIGN: Star-shaped design and thread, the surface is well polished, which can provide a comfortable grip feeling, and it is convenient to control. EASY TO USE: The female threaded nut knob is easy to install, remove and to be adjusted without any tools, which is very convenient.Simply align the internal thread with the screw and tighten it, ideal for manual adjustments in mechanical engineering. WIDE APPLICATION: For secure fastening of panels control knob to assemblies and machinery.Widely used in machine tool equipment, instrument and appliance, furniture decoration, industrial equipment, electronic equipment, etc. QUANTITY: Button 14 pieces female thread nut, enough spare parts to ensure the proper functioning of your machine. (7×M6, 7×M8) Product Description: The female threaded nut knob is made of plastic and copper, durability and corrosion