Inverted Flare Plug - 1/ 2-20

The Inverted Flare Plug - 1/2-20 is a precision hydraulic and pneumatic component designed for high-performance fluid systems where reliability and leak-free operation are essential. This adapter fitting is ideal for mechanics, fabricators, and performance enthusiasts who require OEM-grade components for custom hydraulic lines, brake systems, and fuel delivery in both competition and street vehicles.

The inverted flare design has been an industry standard for decades, creating a metal-to-metal seal that excels in vibration-prone environments. The 1/2-20 thread specification indicates a half-inch diameter with 20 threads per inch, commonly used in domestic automotive and industrial hydraulic systems. This design eliminates the need for crush washers, simplifying assembly while ensuring a tight seal under high pressure and extreme temperature fluctuations.

This plug is particularly beneficial for builders retrofitting late-model brake systems into classic platforms and plumbing custom fuel systems in drag racing applications. Its compact footprint of 0.25 inches across the body makes it suitable for tight spaces in engine bays and transmission tunnels, where clearance is critical around suspension and fuel system routing.