screws for drive caddy for hp z600 z800 z620 z820 z640 z840

[radu3]

I'd recently bought some caddys for my hp z600 & z800 workstations. I don't know why, but some of them came with only 3 screws instead of 4. (just for reference, on bargainhardware.co.uk these caddies have the part numbers 506601-002, 506601-001, 663074-001; what I'd bought is not from this site; just for clarifications, by screws I'm referring to the blue things a hard-drive is fixed on the caddy)

Can you give me some hints how they are called, so that I can search and buy them and have complete caddies?  (I saw other hp workstations using blue screws for fixing hard-drives, but maybe I'm wrong and they aren't suitable for zx00)

Thank you!

[SDH]

Some of those rubberized inserts are blue and some are black.  I've used both types in all those workstations that have that type of drive bay... they seem interchangeable. Those have been called elastomeric mounts, meant to reduce HDD drive vibrations. You can see that they slide on and off the plastic drive "drawer" sides so they can be lost, but there always is supposed to be 4 of them. They are spaced to perfectly fit into the 2 standard front and rear mounting holes on the right and left sides of 3.5" form factor hard disk drives... 4 total.

HP has a nice strong 3.5-to-2.5 form factor converter that is inexpensive on eBay and of usual excellent HP quality should you wish to mount a 2.5" form factor HDD or SATA SSD in one of the drawers. Note below how the adapter shifts the "BlindMate" male SATA power/data connections leftward so that the result meshes perfectly with the BlindMate female receiver at the deep end of the drive bay when the "drawer" is inserted. These are the only ones I use:

668261-001 or 668261-002

668261-001 or -002