Judging from the pictures, we may have a problem with porosity in the sealing cone. Because the supposed porosities on the images could just be shadow, you should let you watch the parts under a microscope at ca 5 x magnification, or make corresponding recordings by TRW.Regarding the different penetration depths of the brake hose sealing surface, I believe, that the part with the deeper impression has seen considerably more than 24 nm of torque. But here you have comparative studies already with different torque veranlassst.
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