The DUTUX Brass Flare Dead Nut is a precision-engineered fitting used to seal and close flare connection points in tubing systems. Made from high-quality brass/copper alloy, it offers excellent durability, corrosion resistance, and reliable performance in demanding environments. It is widely used in air conditioning, refrigeration, hydraulic, and marine systems for secure, leak-proof sealing. Manufactured with advanced machining and strict quality control, it ensures accurate threading, smooth finish, and high dimensional precision. Available in standard sizes, it can also be customized as per customer requirements.