💧 Legines Bulkhead Coupling 4 with 16UNF Fitting Review

I used these with o-rings to add a fuel return fitting to use a marine diesel generator fuel tank. The threads were of good quality and they fit me perfectly.

I needed these fittings to make my sealed vacuum leak smoker. These are of good quality. As expected I used a unibit bit to make the hole big enough.

I used them to install an onboard air compressor, tank and quick couplers on my old truck. They are great for fitting a flexible air hose between moving components. I installed one in the bottom of the bed and the other in the tool box. They're brass, heavy duty, and I love the star washer that keeps them in place when riding over rough mountain roads. I will buy again.