Self-locking copper nut M6/9

Self-locking nuts with M6x1 thread, copper-clad, hardness of 10.9, wrench 9. Necessary for installation of exhaust manifolds, turbocharger, downpipe, exhaust system components and other auto parts as well. Thick copper overlay ensures that the nuts do not rust even at very high temperatures. The cut, as seen in the picture, prevents unauthorised twisting off of the nut.

Thread: M6x1

Hardness: 10.9

Wrench: 9