【Material】High quality carbon steel with zinc plated surface,high hardness and durability.
【Feature】Square nuts have a greater surface in contact with the part being fastened,and therefore provide greater resistance to loosening.
【Application】It suitable for indoor and outdoor,widely used in civil furniture,equipment,construction,electrical appliances,industrial machinery,etc.,generally used with fasteners,screws,washers,screws,etc.,mainly for connection,assembly,fixing,and other functions.