Upgrade your transmission line fittings with Auto Supplies Directs 1/2-inch Transmission Line Tube Nuts, a 5-pack of essential components for your automotive projects. Crafted from durable brass, these tube nuts are designed to provide long-lasting, reliable performance in your transmission system. Featuring a precision-engineered 3/4"-18 thread with an inverted flare design, our tube nuts ensure secure and leak-free connections, meeting the highest automotive standards. They are compatible with various materials, including steel, Poly Armour, Copper, Nickel, and Cupronickel tubing, making them versatile for your specific needs. Engineered to withstand high-pressure conditions, these tube nuts are the ideal choice for transmission line repairs and replacements. Whether youre a seasoned mechanic or a DIY enthusiast, installation is a breeze, thanks to our user-friendly design. With a convenient 5-pack, youll have an ample supply for multiple projects or as backups for future needs. Rest easy knowing that our tube nuts are lead-free, meeting safety standards for automotive applications. Choose Auto Supplies Direct for top-quality transmission line tube nuts, backed by our commitment to quality and customer satisfaction. Elevate your automotive fittings to a professional level with these SAE-standard tube nuts, designed for the most common transmission line sizes. Trust in the reliability and performance of our products for all your transmission line needs.