The Lincoln Industrial Long Grease Fitting With Ball Check is designed to provide a tight metal-to-metal seal and a wide-angle of contact. This stainless steel grease fitting is ideal for use in automobile and truck applications. The ball check ensures that the grease is securely held in place and prevents any leakage. This grease fitting is easy to install and provides a reliable connection for your lubrication needs. FleetPride is your First Click in Heavy Duty®.