A Hexagonal Flange Head Screw is a type of fastener that combines the features of a hexagonal head and a flange. It is used where a secure and reliable connection is required. It consists of the head, the shank, and the thread. The head of the screw is hexagonal in shape, allowing it to be tightened or loosened using a wrench or socket.Attributes:• Helps prevent damage to the material being fastened • Provides a more secure connectionApplications:A Hexagonal Flange Head Screw is used to secure exhaust manifolds to the engine block. The flange provides a larger bearing surface, ensuring a secure and leak-free connection between the manifold and the engine.