Great rail, terrible bolts - Daniel Defense DD M4 Rail

I am a huge fan of Daniel Defense rifles and their products but cannot understand for the life of me why they use such horrible screws for the ddm4 and slim rails. I have both rails on different firearms and stripped out the screws on both rails and had to replace with different screws. For a product that the costs $365 (DDM4 10”) and $270 (Slim 9”) you would thing they would give you quality mounting hardware and this is not the case. Love Daniel Defense but am very disappointed at their hardware quality.