SB Bolt Size?

My brother-in-law finally returned my engine stand (after 7 years ). Now I can get the spare 318 off my garage floor.
I need to know what size bolts will I need to mount it to the stand?

Here's an example of the format I'm looking for:

1/2" x 2" with a #20 thread

Thanks for the input!

they are 3/8" coarse thread. the length will depend on how long the connectors are on your particular brand of eng stand.

For all those years you didn't have an extra $35 to buy another engine stand?

R.