-3AN Male To 3/8-24 Female Inverted Flare 3/16" Brake Line 3an Male on One End and a 3/8-24 3/16 brake line inverted flare fitting On the Other End. These will in all thickness frame brackets with A Jamb Nut Used As A Hose Clip. Also Used when connecting stainless braided hoses to 3/16" Brake Line. Used To Easily Customize New Lines And Connect Flexible Hoses. Size 3, 3/8-24 SAE thread size