Installing A Sata Hard Drive Top [upd] -

If your case uses removable trays, slide the drive in and secure it with screws or toolless clips .

To provide a clear, step-by-step guide for safely installing a SATA hard drive (3.5" HDD or 2.5" SSD) into a desktop computer, with specific attention to: installing a sata hard drive top

Usually a #2 size for most PC screws.