Bolt size to bolt eng to stand????

I need to know the bolt size needed to bolt my lq9 to a stand. No body at any parts counter around here can tell me. I am tired Of driving to and from to get the wrong damn bolt 50 times. Any one know??????
Thanks

I dont know but you can measure the hole And that will give you a good idea.

10mm x 1.5 pitch, you'll have to decide on the length you need.

Thank You very much