I could not find them for sale anywhere and they are completely out of sight, so I just went to Lowes and purchased a couple of screws with 1/4" heads on them since I found that it was impossible to get a screwdriver down there.
I want to say that the thread size was 8/32 or something to that effect and I think I used either 1/2" or 3/4" screws.. I just purchased them last weekend and put them on last weekend and Im drawing a blank. I would carefully thread some test screws into the hole while it is apart to get the proper size as that is what I did. But the only way I was able to get the screws in once the handle was in place was with a 1/4" wrench and a great deal of time, frustration, and swearing. I would have included a beer or 2, but then that would have made me have to add even more time, frustration, and swearing. So I had the beers after I was done.