Brand: StarTech.com. MPN: SCREWM3. This pack of 50 M3 x 1/4in computer screws are great to have on handy for building reparing and maintaining computer systems for mounting any motherboard to your PC chassis or attaching any floppy/CD-ROM/DVD-ROM drives.StarTech SCREWM3Thread TypeM3 (outer)M3 (inner)Length0.2 in [6.3 mm]Package Quantity50ApplicationMotherboard & 5.25 / 3.5 Drive Bays Package Includes 50x SCREWM3 Screws.