Answer
Jul 08, 2025 - 08:09 AM
Flare nut sizes can vary depending on the application and the tubing size they are designed to fit. Common sizes for flare nuts used in automotive and HVAC systems range from 1/4 inch to 3/4 inch in diameter. It's important to match the flare nut size to the specific fitting and tubing dimensions to ensure a proper seal and connection.