This is a complete set for upto 24 Drives (96 screws needed) plus an additional 4.
These screws are used by us in Supermicro, HP , Dell , EMC , Chenbro ,ISILON and several other sever makes
with 6/32 thread for 3.5" type hard drives. (SAS , SCSI, SATA , NL-SAS etc)
Fast Shipping from CA , will arrive most locations in 3-4 business days