Not sure about a 225 For a RS250 they are E14 x 1.75 External Torx Head Screw Bolt Galvanized and Flanged 10.9
Like zoto posted. But actually I tought that the steering knuckles are the same for clio 197. Because on the clio there are 4 bolt holding the wheel hub to the knuckle.
If you mean number 11 then they are: 13mm bolts (77 03 002 692) which assure just M10 x 30mm flanged hex head bolts (threaded their entire length) and are 10.9 grade steel (not stainless). Almost £30 from Renault for all 6 of them!!
