widely used: the nuts are widely used in household and office devices, communication equipment, assembly of ships and other machine industries. These hexagonal nuts will be an excellent replacement for industrial and construction fixings. Function: the hexagonal nut is used to mount bolts, studs or metal screws to fix two parts together to make them in one Piece. Material and quality: The long rod nut is made of zinc -based carbon steel, high resistance and good corrosion resistance. Form on 6 sides: the hexagonal shape at 6 sides which gives a good granularity of the angles for a tool from which to approach. Exquisite manufacturing: this nut is well done and the wires were perfect. It worked very well for your project.