In engineering, manufacturing, and construction, high performance hex head high tensile 8.8 grade bolts provide exceptional strength. These bolts, which are made of high tensile steel, are stronger than ordinary mild steel bolts in terms of both yield and tensile strength. They are frequently tightened using a torque wrench and are known as structural grade bolts. frequently utilised when heavy weight applications or engineering-type tasks call for a high tensile hex bolt.Metal to metal or metal to wood can be securely fastened with these hex nuts and bolts. frequently used for securing when a nut may be installed in the back.