Micro Trader 12pcs Exhaust Manifold Nuts Head Stud Nut M8 Hex Copper Self Locking Car Parts

Looked for something to replace the chewed up header nuts on my 2013 Triumph Thruxton 900.... These were the right thread, had the self locking and the flange or whatever the part is called that's bigger than the nut....Anyway I painted them black and installed the newly painted headers (they were rusted and pitted) and they look great! I'll probably touch up the paint a little but otherwise they are doing great keeping my exhaust on my bike! lol

Love the product just as described!!

Fits up to stock studs perfectly. Looks great against the cast block and stainless headers.

These seem like nice quality and were exactly what I was looking for to install my new exhaust. They even have a "locking" feature on the last threads to prevent loosening. I'll probably buy more of these.

So far so good, but be aware the copper color does go away once things warm up a bit, After a few weeks it's turned into a pale yellow, but no signs of rust and functionally seem perfect.

Haven't installed them yet. But they look nice. Was going to get stainless, but hadn't found any that had the locking tabs. Just serrated flange nuts. These should look slick on the bike, they better not rust if they are what they say they are. Get a little petina after a while. But that should buff out if I choose to. Will likely use some copper anti seize though.

These were the highest quality high temp lock nuts for use on a Porsche catalytic converter exhaust. Very pleased and impressed with the complete transaction. I always use Amazon Prime whenever possible.

They look nice and have the hexagon head size of 13mm that is better than 12mm

Tighten with a box wrench or socket.

Great quality, well made, and 100% functional.