I have a bunch of portable shelters to build this year, so last year I went out and bought a 25 pound container of them at home depot. About $75 for 25 pounds of "deck screws". Yesterday, I figured out that I needed some other sizes. In the hopes of getting a better deal, I called "Fasteners, Inc" in Spokane (not sure if it is a chain or if it is just local). They don't sell by the pound, but by the 100. I got to talking to the FI guy and he made some good points. He asked me what I was building. I said "today I'm building a farrowing hut" "Will it have a roof?" "Yes" "Well, anything that is going to always stay dry, probably doesn't need all of that outdoor coating which gets pretty expensive." He then gave me some prices for some drywall screws that were much cheaper than his outdoor screws. But I'm still curious about comparing the per-pound price to the 100 price. Anybody have advice?