Crimp hydraulic hose fittings with inverted flare connection join hydraulic hoses to equipment or hoses with compatible inverted flare threads. They have a crimped end that attaches to hydraulic hoses and an inverted flare end that attaches to equipment or other hoses. The male-threaded inverted flare connection has a 42° flare seat and straight threads that create a tight seal when joined to female-threaded inverted flare parts. A crimping device seals the fitting for a permanent connection. These fittings are vibration-resistant and typically used in custom hose assemblies for automotive systems, such as hydraulic brakes, power steering, and fuel lines.