AIGO JNS Brass Pipe Fitting, Hex Counter Sunk Plug, Male Pipe (5, 1/2 Inch)

Plugs were finely machined, Allen type socket fits tool perfectly. Only needed one, but since these are so good, I've found others I used with ugly square protruding tops that I replaced for a much cleaner look on a show vehicle engine.

Work great no leaks great price

I installed an air separator in my heating system, and needed to plug the expansion tank fitting on the bottom of it. Because it was brass, I wanted to use the same material. (I know I didn't have to.) The counter sunk hex socket means there is nothing to catch on. I wanted this because the plug site even with the bottom of the floor joist.

worked as designed, good price

These would easily be a five star product except for the combination of the metric hex socket on an NPT plug. The fact that the item description does not list this error is even worse; however the thread fit was so good, and the product so well finished otherwise that I cannot justify less than four stars.

I used a couple of these to plug the test port holes in my sprinkler system vacuum breaker when the test valves began leaking. They worked as expected.Pros:- True 1/8" MNPT.- Very smooth surface and threads.- Withstood application of Teflon tape and standard tightening with an allen wrench without any problems.- Heck of a lot cheaper in bulk than big box stores. In fact, this pack on Amazon is only a mite more expensive than purchasing from overseas on the big online auction site & is delivered in 2 days versus waiting weeks.Cons:- None yet.

Really well made and well machined plugs. Used them to replace the plastic plugs in some marine exhaust manifolds. Work perfectly.

No issues

GOOD QUALITY OF PRODUCT BUT PICTURE ARE NOT FULL IDENTICAL TO PRODUCT BUT THEY ARE SAME SPECIFICATION

Great value, Fast delivery! Perfect for my application!

well made good price

Good threads and exactly to spec. No issues.

good