Hex Size
Hex size is the size of the hexagonal top on your wheel nuts or wheel bolts. This is important to know in order to know which size of socket or spanner you’ll need to put the nuts or bolts on to your vehicle, or to be able to remove them in the event of a flat tyre on the side of the road.
The most common hex sizes or wheel nut / wheel bolt head sizes available are 17mm, 19mm and 21mm. However, other sizes do exist. Please be aware that not all hex sizes are available in all thread types.
