4AN Anodized T-6061 Aluminum Straight Black Oil Line Fitting Adapter (M12 X 1.5 Thread Pitch) Made of High Quality And Lightweight T-6061 Aluminum Material Anodized Finish for Strength and Durability 2-Way Heads for Both Male and Female Applications Fitting Diameter: AN-4 Inlet/ Outlet Thread Pitch: M12 X 1.5