They are way easy to find. I had the same thing happen to me. They are a cap head 1/4 x 28 by 1 inch long screw. I found them at the local industrial bolt place.
It worked! Found that screw at the local Home Depot and also found out that the washers that work with the screws are also very available and easy to find. They are Metric 6mm washers. Thanks. I appreciate it!