Black Lug Nuts Black Wheel Nuts Black Phosphated Manufacturer

Black lug nuts are M14/M18/M20/M22-1.5 threaded. The nut hexagon size should be 19/24/27/30/32. The height of the nut would be 14/19/20/27/32mm. Ever Hardware provides custom-made fasteners and customizable packaging.

Heat treating makes the steel black lug nuts high tensile to be Grade 10.9/12.9. Heat treating is a group of industrial and metalworking processes used to alter the physical, and sometimes chemical, properties of a material. The most common application is metallurgical. Heat treatments are also used in the manufacture of many other materials, such as glass.

Phosphate coatings are a crystalline conversion coating that is formed on a ferrous metal substrate. The process of Phosphate coating is employed for the purpose of pretreatment prior to coating or painting, increasing corrosion protection, and improving friction properties of sliding components. In other instances, phosphate coatings are applied to threaded parts and top coated with oil (P&O) to add anti-galling and rust inhibiting characteristics.
The phosphating process relies on the basic pickling reaction that occurs on the metal substrate when the process solution comes in contact with the metal. The main benefits that phosphating provides are strong adhesion and corrosion protection. Typically, phosphate coatings used on steel parts but can also be used on aluminum. Metal coatings offer both zinc phosphate and manganese phosphate coating.