Eaton Weatherhead C3069X8X4 Carbon Steel Pipe Fitting, Hex Nipple, 1/2" x 1/4" NPT Male, 1.7" Length (Pack of 5) Adapter for connecting hydraulic fittings of different sizes Zinc-plated AISI 12L14 carbon steel for tensile strength, hardness and resistance to corrosion 1/2" NPT male fitting on one end and 1/4" male NPT on the other for connecting female threaded fittings Temperature range of -65 to +400 degrees F Meets SAE specifications