Mount engine to stand?

Ok...newbie question here.
I'm going to pull the 318 out of my dart soon.
I have an engine stand I bought from summit. It's the kind that the engine attaches at the rear of itself to the stand and can be rotated via a crank handle on the stand.

I have a cherry picker to pull the engine and will be able to easily suspend it in order to mount it to the stand.

My question is regarding the actual mounting of the engine to the stand.

What bolts do I use?
Are there certain grade bolts I should use?
Where can I find such bolts?

Thanks,
Mike