CUH-7115B Replacement Screw

Hey there, I ordered a broken PS4 pro off of eBay with a bad power supply, I was able to replace it and now it’s working just fine but the original owner had tightened down the apu clamp screws too tight and stripped them, I was just wondering if you happened to know the size and type of screws I’d need so I can order them and give this a proper fix, thanks in advance!