Where can you get the kind of screws used to secure devices to the rail that slide into a computer case?

[glen]

Where can you get the kind of screws used to secure devices to the rail that slide into a computer case?

 

[Cerb]

Bump. And BTW, what he needs is a bag o' stuff from a motherboard or case.

 

[FleshLight]

Lowes, Home Depot, Newegg

 

[dartworth]

Cyberguys has all that chit man...