Garrett GT20 Project

[Dum-Dum]

As for the tensile strength of the bolts it doesn't say whether they are 8.8 10.9 at all. Well, they are actually screws, to be fair. But they are M8 screws so must be fairly beefy? They've got a phillips head anyway so I wouldn't be able to bolt them up tightly. I did ask for some M8 countersunk bolts but they only had these big screws.

They are set screws mate. The difference between a set screw and a bolt is a bolt has an un-threaded length between the head and the thread whereas the set screw has thread all the way up to the head.

Tensile strength is important as some cheap bolts and set screws are made of cheese. Are they stainless or mild steel and did the packet have any numbers on it?

If I was you, id put them counter sunkbolts in, and weld them all / grind back flush, so there effectivly just studs welded to the plate then, will make it stronger, and stop the damn things from spinning! Can put together in any oder then, whats what ive always done anyway

This sounds like a good idea.