I needed an M12x1.5 for a Honda CBR-900, but the same thread also has x other models, manufacturers and car engines. This part has a magnetic pin that should hold iron abrasion in the oil, and a hole where you could attach a seal for racing (should avoid falls of other bikers due to oil loss). For the sake of caution, I asked the dealer if this was the case for the original (steel) bolts. This is also true – yes, that has been confirmed. BUT then it turned out that the thread is already spinning at 25 Nm. The photo shows how it is torn off at the shaft. Not surprising, because the wall thickness is reduced by the bore for the magnetic pin. And the 30 Nm is also needed to effectively press on the aluminium sealing disc. So this is a FELLOW CONSTRUCTION of the good technician colleagues from the Far East. And there is the danger, besides oil loss > Engine damage for bikers also: > Fall when the oil splashes on the wheel – there are also a few drops.