i recently purchased a eisbaer 280 to use on my 3900x i think the temp's might be ok it gets to 67-70 deg c when running cinebench r20, the problem is when i screwed the bracket down to the backplate 2 of the screws never stopped/got tight to turn, they give a click and can continue to turn (i stopped after i heard the first one). 2 of the 4 screws are like this, does anyone know what thread size these are or where to get some replacements from, the alternate is to buy some nuts and screw them onto the thread behind the backplate to pull it tight against the cpu.