When building the main frame, you will want to use 3-1/8″ Screws for all the framing connections, except the few screws you will use to create the table legs. For those, you will want to use 2-3/4″ Screws, so they do not poke through the adjacent 2×4.
You can find my hardware material list on my Amazon Storefront for ordering casters and screws. If you want detailed plans with Lumber Lists and Cut Lists, just fill out the form below and I will email you full set of the detailed plans.