6AN to 6AN Bulkhead

Used this to pass fuel line through the firewall in my project truck, and the threads were clean enough to hand-tighten without cross-threading. The included nut holds everything securely in place once you wrench it down. Fits exactly as a 6AN bulkhead should.

The nut spins on smoothly and the flare seats perfectly every time—no leaks after installing it in my fuel cell bulkhead. Exactly what I needed for a clean pass-through.

Machined perfectly and the threads are buttery smooth, so the nut spins on without any binding. I mocked it up on a scrap panel and the flare seats dead-center with zero wobble, which is exactly what you want for a permanent install.