SISUN Computer Mounting Screws Box Kit - chassis / case / motherboard / Rubber PC Fan Screws Rivets / HDD Hard Drive Screws(including 82 screws) 20pcs 6-32 coarse thread for CD-ROM drive and the computer motherboard Screws 20pcs M3 fine thread for hard drives,motherboard and power supply Screws 4pcs Black Rubber PC CPU/Case Fan Mounting Screws Rivets, 8pcs fan of 8025/12025/18032 specifications Screws 10pcs side panel of the computer chassis Thumb Screws 10pcs 6-32 coarse thread brass pillar screw for mainboard ,10pcs M3 fine thread brass pillar screw for mainboard