I have a hard drive expansion card you can mount your drive with. Will include a SCSI cable. Alas, it also takes up a card slot in your 2000.
The card you have used a bracket mount to stand-off a hard drive flat on the card. There are 2 mounting holes at the rear. The bolts and nuts that attached the bracket were nylon. It had nylon pegs as stand-off's near the center of the card.