High Tensile Grade 8.8 Hex Bolt comes with high-strength bolts. These bolts can withstand breaking. This higher tensile strength hex bolt comes with a bolt that can sustain the higher capacity to bear impact. These are used for high-stress fastening applications. High Tensile Grade 8.8 Hex Bolt is used in applications which have high stress on the fasteners. When connecting two parts, the tensile stress forced on the fastener can break it.