Help we just got a free above ground pool only problem is the screw are missing. We need help figuring it out it is a 52 inch unknow name of pool. It has a haywood pump. Anyone have any ideal we know it is a lot of screws but need help with size.

Try taking some of the screws you do have to a hardware store (or the parts they fit into) . Likely they are going to be stainless steel. Without more specific information (that you don't have) there is no way we can be more specific.