Black Graphics Card GPU / VGA Heatsink Spring Screws M2 x 6.6mm (4 pack)
Common screw size for holding GPU heatsink around the core (AMD and nVidia). nVidia founders heatsinks tend to require m2.5 also. These screws are very slightly shorter than the standard size of m2x6.8mm or m2x7mm screws that fit most GPUs.