Use these nuts with 45° flared tube fittings to provide a tight metal-to-metal seal on flared copper and brass tubing. Nuts are brass for good corrosion resistance. They don’t require a sleeve, which makes for a fast, convenient installation.

Long nuts support more of the tube’s surface area than short nuts for a strong grip in high-vibration applications.

For technical drawings and 3-D models, click on a part number.