I'll just respond with what happened in case someone in the future needs it. After about a week and a half wait, Holosun finally responded and they are sending out a free screw. However, because I wasn't sure that I would get a response, I bought the screws from Tacrig. So, it looks like I will be getting the screws from both places around the same time. Not how I wanted it to happen, but it will be fixed. The result is that I do not plan to buy any more Holosun's for a while. These things are too much money to not get timely responses.