The case comes with an accessory kit with a set of screws (20 x fans, 18 x MBD/HDD, 8 x ODD/SSD, 4 x cases, 3 x standoffs) as well as 12 cable ties, 3 Velcro strips and 8 washers (see instructions on page 2 of https://assets.corsair.com/image...). If you buy (additional/different) fans, 4 screws are usually also included. Have fun building.