i have a 2004 gmc canyon n i need to find out....?

[*Mommy 2 Be*]

where i can find the screw or bolt or whatever u call that is for the drivers side door...my window messed up and some1 took out the bolt to take off the door cover and 4got 2 put it back on n now my door handle cover is all loose....can u tell me what is it called and where could i find 1 for purchase