Description
The FMSI #3018 Brake Line Union Invert Flare Tube Nut is a 10 pack of fitting components designed for brake lines. This tube nut features a 3/8″ x 5/8″ size with 18 TPI (threads per inch) and is a direct replacement part for various brake system configurations. It can be used on the upper, lower, rear, left, front, and right positions of the vehicle, providing a secure connection for brake line fittings during maintenance or repairs.






