hi guys, sorry about the title but I dont even know what is that called in greek either.  Is where the screw goes to hold the bumper.  I cannot screw anything anymore as that thing has worn off.  Can someone tell me what is that called? 

How can I ask for it if I go to Skoda (or ebay)?

According to parts listing, its listed as a expanding nut

 

part number -- N 908 214 01,

 

Think there is 3 on bottom slam bit and 2 either side behind small grills on front bumper

 

part number for screws to screw into them is N 907 750 01

hi mate, much appreciated, thanks for your help