The Hexagonal Shaft is used in the exhaust bypass valve. Its unique hexagonal shape allows for optimal torque transfer and rotational precision. This ensures that the exhaust bypass valve operates effectively, controlling the flow of exhaust gases and optimizing engine performance.Attributes: • Withstands the high temperatures and pressures within the exhaust unit• Provides accurate torque transfer• Hardened to Rockwell C Scale hardness value of 24 HRC to increase the strength and impact resistanceApplications: The Hexagonal Shaft is used to manage and control the flow of exhaust gases through the bypass valve located in the flywheel housing.