Hdd and SSd screws

Solution
They are M3x5, yes they will work if you are not keeping the HDD. If you want to keep both, you can probably grab some at a hardware store.

EDIT
I was wrong, 3.5" drives use 6-32 and 2.5" drives use M3 screws. So it depends on your particular situation, if your referring to a laptop then the screws will work. If its a desktop with a 3.5" HDD then no, you'll need the M3x5mm screws.
They are M3x5, yes they will work if you are not keeping the HDD. If you want to keep both, you can probably grab some at a hardware store.

EDIT
I was wrong, 3.5" drives use 6-32 and 2.5" drives use M3 screws. So it depends on your particular situation, if your referring to a laptop then the screws will work. If its a desktop with a 3.5" HDD then no, you'll need the M3x5mm screws.
 
Solution
Make sure you read my edit.

IF you are talking about a laptop the screws can be reused, if it's a desktop then you'll need to grab some M3x5mm screws for the SSD.
However if you built the computer and its newer(with 2.5" drive bays) they may have come with your case.
 


Done reading it and the one im using is in a desktop. one thing is it okay if i use the motherboard screw ( because it's shorter than the hdd screw ) that one with washer head screw to mount a ssd?