What size is the chevy spark lug nut ?

The lug nuts for a Chevy Spark are going to have a hex head size of 19mm and a thread size of m12 X1.50. These lug nuts are a common size for Chevy cars so You should have no issue finding them at Your local auto store. A single lug nut will cost between $5 and $7. A set for a whole wheel will be between $20 and $35. If You need an entire new set of lug nuts for Your vehicle it will be between $75 and $100. If You're going to take a wheel off this vehicle to work underneath it You'll only need to use a 2 ton jack. You won't need more because this vehicle is very light.