'Brake Line Nut, Bubble Flare, Hex Size 3/16 In., Pipe Size 3/16 In., Tube Size 3/16 In., Thread Size M10 x 1.0, Pressure (PSI) 3000, Outside Dia. 3/16 In., Connection Thread x Tube, Temp. Range -40 Degrees to 200 Degrees F, Material Steel, Gasket Material Steel, For Use With Ford Steel Brake Lines, Hydraulic Brakes, 52HG76, G6391981'