How does shipping with Fastenal work?

I'm looking for an engine, and I'm not finding anything locally. I've seen a few possibilities elsewhere, but it would require shipping. I recall reading a number of times that Fastenal is a pretty cost-effective way to ship something big and heavy like an engine. Could folks with experience at this provide some feedback please?

Of particular interest is what requirements does Fastenal have for packaging, how much did they charge, and how long did it take go get your delivery.