Citroen C4 wheel bolt & nut sizes
The Citroen C4 (2004 on) uses M12x1.25 wheel fixings with a flat or 60° taper seat and a 17mm hex. Check the table below for the exact fixing for your year and wheel type.
Last updated 2 October 2026
Thread
M12x1.25
Seat
flat / 60° taper
Hex size
17mm hex
Strength
Class 10.9 / Class 10.9 (300)
Sizes by year and wheel type
| Image | Model code | Wheel type | Thread | Length | Seat | Hex size | Finish | Strength |
|---|---|---|---|---|---|---|---|---|
| 2004 on | ||||||||
| L, N, O | Alloy Wheels | M12x1.25 | 33mm | Flat | 17mm hex | Delta KL100 | Class 10.9 |
| B7, LA, LC | Steel Wheels | M12x1.25 | 26mm | 60° taper | 17mm hex | Delta KL100 | Class 10.9 (300) |
| L, N, O | Steel Wheels | M12x1.25 | 26mm | 60° taper | 17mm hex | Delta KL100 | Class 10.9 |
A dash in the length column means no length is listed for that fixing. Not sure which wheels you have? Steel wheels usually have a plastic trim cover over them.
Locking wheel keys for the Citroen C4
Lost or damaged your locking wheel key? Find a replacement for your Citroen.
Common questions
What size are Citroen C4 wheel bolts?
Citroen C4 wheel fixings are M12x1.25 with a flat or 60° taper seat and a 17mm hex.
Do steel and alloy wheels use the same bolts on a Citroen C4?
No. Steel and alloy wheels use different fixings on the Citroen C4. The table above shows which one fits each wheel type.