Tube Nut 3/16 x M12 x 1.0 Bub - K Tool International

The K Tool International KTI03973 Tube Nut is a vital component for professional automotive and industrial fluid line service. Engineered for precision, this 3/16" x M12 x 1.0 bubble flare tube nut provides a secure, leak-resistant connection, essential for integrating hard lines with metric ports on many import and late-model vehicles. Technicians can rely on this component for dependable fluid system integrity in demanding applications.

Key Features

• Precision Fit for 3/16" Lines: Perfectly sized for standard 3/16" steel or copper-nickel hard lines, ensuring an accurate fit for common automotive brake and fuel systems.
• Accurate M12 x 1.0 Metric Threads: Features precisely machined M12 x 1.0 metric threads for reliable engagement, minimizing the risk of cross-threading and ensuring a tight, reliable seal with mating components.
• Professional-Grade Durability: Manufactured by K Tool International from high-quality materials, built to withstand the rigors of daily professional shop use and repeated line fabrication.
• Secure Bubble Flare Connection: Engineered to create a dependable, leak-free connection when used with properly flared 3/16" tubing in bubble flare applications.
• Compact Design: Its compact form factor facilitates easier installation and service in restricted chassis and underbody environments, accommodating standard line wrenches for professional mechanics.

Applications

This automotive tube nut is an ideal solution for technicians performing brake line repairs, fuel line replacements, or custom line fabrication. It is particularly well-suited for connecting 3/16" tubing to M12 x 1.0 ports on various import and late-model passenger cars and light trucks. Common uses include disc and drum brake circuits, fuel delivery systems, and other low-pressure hydraulic or fluid transfer systems requiring this specific tube and thread combination.

Specifications

• Manufacturer: K Tool International
• Model Number: KTI03973
• Tube Size: 3/16"
• Thread Size: M12 x 1.0 (metric)
• Flare Type: Bubble Flare (Bub)
• Approximate Weight: 0.15 lb