Laptop screw sizes PM2.5×5.0 vs M2.5×5.0

Karsten75

Distinguished
Oct 15, 2009
25
0
18,590
I'm working on restoring a HP DV2000 and find myself once again in a bind.

The laptop came without a hard drive. I sourced a hard drive, only to realize that the laptop was also missing the SATA adapter and the drive caddy.

Then I sourced that, only to find that the caddy only comes with 4 screws to mount the hard drive to the caddy, and nothing to mount the caddy to the laptop drive bay.

In the hardware service manual, the specifications for the screws I need are:

Phillips PM2.5×5.0 .

http://h10032.www1.hp.com/ctg/Manual/c01035657 (Section 5-10)

As luck would have it, I don't have any of those - they're a tad tinier than any in my collection of screws.

Looking around, I can find sources for M2.5×5.0 screws. Are there any differences between the two designations? One source seems to think they're fungible. I'm not sure and I'd rather not order them if they won't work.
 

Karsten75

Distinguished
Oct 15, 2009
25
0
18,590
Hey, thanks! I appreciate the effort. I went ahead and got these - partially because they're a mixture of sizes, so hopefully next time I'll have what I need, but primarily because I got them overnight with Amazon 1-day delivery.

https://www.amazon.com/gp/product/B011EFAB8K/

In case anyone wants to know, they seemed to fit. While I still don't know why there're different designations for the same thing, I'm all sorted out on the hardware front with this problematic little laptop.

Software-wise it's a whole 'nuther kettle of fish.