Allstar Performance inverted flare nut, 3/8-24 for 3/16 line, 10pk, for race car brake systems. Made from steel, secures brake lines. Hand-tool compatible for track use. Fitting - Flare Nut - 3/8-24 in Inverted Flare Male - Steel - Zinc Oxide - 3/16 in Hardline - Set of 10