Community Tip - Visit the PTCooler (the community lounge) to get to know your fellow community members and check out some of Dale's Friday Humor posts! X
Do they have CAD models? I didn't see where you could download anything?
I quit using that and get everything from http://www.mcmaster.com/now.
You have to find the part you want and then there will be a button to download the pdf print and/or 3d model. The models are all dumb solids though (but you shouldn't be changing a standard screw all the time anyway right?)