Wheel Bolts with spacers?

[StevoS3]

Picked up 10mm spacers for the back and 7's for the front. What length of wheel bolts do I need?

 

[s3 Hoggy]

10mm longer bolts for the back and 7mm longer for the front

 

[s3 Hoggy]

I found it hard to get hold of any specific sized bolts, I think the std size were 37mm long thread? most places only sell one extra long size and you will have to cut them down. my dads an engineer so he cut all mine at his work for me.

Cheers Matt