?Size?6#-32, suitable for most computer case. ?Material?Made of high quality anodized aluminum, light weight, no fading, antistatic, long service life. ?PackageTotal?10-pcs Anodized Aluminum Thumbscrews. ?Easy to Install?Thumb screw design allows for easy, tool-less removal ideal for computer case panels. The computer thumb screws offer duplicate convenience in the event you need to re-open the computer case, as the thumb screws can be removed by hand without a screw driver. ?Widely Application?suitable for Computer case, PCI slot, or motherboard mounting; Fits most desktop computers.