I have a 7700k and I bought a 212x that came with a backplate screw without thread. I put a pea-sized drop on the processor and apparently it spread well and evenly. I tightened the bolts diagonally and left a little loose the diagonal opposite of the missing one. I´m using the cabinet (Corsair 100CR with 5 fans) lay down due to the missing screw, and when closing the cooler is a little higher (should I tighten the lid? It fits without difficulty). Is there any risk in leaving the cooler like this? Doing light and moderate tasks the processor min temperature is 38C and maximum 64C (with turbo boost activated) and 30C and max 54C with Turbo boost deactivated. Thanks!