External Torx Bolt Genuine Mercedes Benz M8 High Tensile

External torx bolt has flange washer under the head used on Mercedes-Benz. The screw head has the shape of a Torx screwdriver bit, and a Torx socket is used to drive it. Ever Hardware provides custom-made fasteners and customizable packaging.

Heat treating makes the external Torx bolt 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. Heat treatment involves the use of heating or chilling, normally to extreme temperatures, to achieve the desired result such as hardening or softening of a material.

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.