Mobo and screw problem?

[haha]

hey i dont think this really matteres but in case someone out there feels that its an issue i'd like to know of that opinion....does it really matter what screws i use when connecting the riser and the mobo together? I've been given 4 and here are pics of em...how someone can give me a yes or no...thanks

http://www.freewebs.com/rayzzz/DSC01215.JPG
http://www.freewebs.com/rayzzz/DSC01216.JPG
http://www.freewebs.com/rayzzz/DSC01217.JPG

 

[thealmightyone]

Looks like A is the one you need to use. If the screw doesn't screw in easily, then it doesn't fit (it might want to screw in at a slight angle etc).

 

[StrangleHold]

As long as it screws in all the way and the screw head is not larger than the metal ring around the hole.