Citroen C Zero wheel bolt & nut sizes
The Citroen C Zero (2009 on) uses M12x1.5 wheel fixings with a 60° taper or flat seat and a 21mm hex. It has 4 per wheel, so a full set is 16. Check the table below for the exact fixing for your year and wheel type.
Last updated 2 October 2026
Thread
M12x1.5
Seat
60° taper / flat
Hex size
21mm hex
Strength
Class 8
Sizes by year and wheel type
| Image | Model code | Wheel type | Thread | Length | Seat | Hex size | Finish | Strength |
|---|---|---|---|---|---|---|---|---|
| 2009 on 4 per wheel | ||||||||
| 1 | Alloy Wheels | M12x1.5 | – | Flat | 21mm hex | Chrome | Class 8 |
| 2011 on 4 per wheel | ||||||||
| 1 | Steel & Alloy Wheels | M12x1.5 | 42mm | Head Ø 18 | 14.3mm spline | Zinc | Class 10.9 |
| 1 | Steel Wheels | M12x1.5 | – | 60° taper | 21mm hex | Yellow Zinc | Class 8 |
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 C Zero
Lost or damaged your locking wheel key? Find a replacement for your Citroen.
Common questions
What size are Citroen C Zero wheel bolts?
Citroen C Zero wheel fixings are M12x1.5 with a 60° taper or flat seat and a 21mm hex.
Do steel and alloy wheels use the same bolts on a Citroen C Zero?
No. Steel and alloy wheels use different fixings on the Citroen C Zero. The table above shows which one fits each wheel type.
How many wheel bolts does a Citroen C Zero need?
4 per wheel, so 16 for a full set of four wheels.