Dear Customer,
The thicknesses of the thermal pads in Nebula VGA Water Block for MSI GeForce RTX 4090 SUPRIM and GAMING series are 1.0mm and 1.5mm.
BP-WBTP9420-T10
BP-WBTP9420-T15
https://shop.bitspower.com/index.php?route=product/search&search=BP-WBTP9420-T1
You need 11 pcs of M2.5 x 8 screw to install the back plate with the water block.
And 2 pcs of M2.5 x 6 install the original I/O. Any flat m2.5x8 and any flat m2.5x6 should work.
When you log in, you can purchase.
Please remak M2.5 x 8 and M2.5 x 6 screws in your order.
We will put the screws in to the package.