Theyre tiny but they serve a mighty function. It almost seems as if the whole world hinges on little screws holding things together. This is especially true with your PC and peripherals. A couple of missing screws can cause panels to separate components to loosen with disaster sure to follow.Features. Thread - M3.. Length - 5 mm.. 5 - Pack.. Dimension - 1 L x 1 W x 1 D in.. Item Weight - 0.5 lbs.