Should re-installed fasteners be oiled?

[spendy]

Originally Posted by woodsman

I know it's harder to cut a stainless bolt in half. Can you elaborate regarding hardness, toughness etc.?

Here's a reference chart. Take a look at the metric portion of the chart to compare strength. I'm not saying never use stainless, but that one should be aware of the properties when changing critical fasteners. It is -not- a 'no brainer'.

https://www.boltdepot.com/fastener-information/materials-and-grades/bolt-grade-chart.aspx

[Gelbster]

I think you are confusing mPa and psi?
Aluminum threads will strip long before s/s in any normal application. We are only talking 10Nm for an M6 bolt !
The limiting factor is not the s/s fastener. The limiting factor is the threads in the aluminum part.