Quintana roo system 6 seat post question

[tglas1]

i have a qr system 6 seatpost. where the post attaches to the seat are 4 vertical screws - 2 on each side. they are about 1/4 inch wide. what do they do, because as i was riding 2 fell out. I had a test seat put on so wondering if it wasn't secure. This is a very ignorant question, I know, but I cannot find anything online on what they are and how to fix.

[nfmisso]

please share a picture of what you have; sorry I have no idea what you are talking about without a picture. I tried Google Images; nothing that came up made sense with your question.