Lift kit help

Half fitted a 2" lift kit to a discovery 1 today for the first time, what a nightmare as sheared bolts off rear spring retaining plate and had to drill them out.
Going to get some from hardware shop tomorrow, can anyone tell me what size i will need? are they m10, cant remember and want to get them first thing on way to finish the job.
Cant wait till its done, it is looking well worth the pain, rained all day whilst fitting the kit.
Thanks for any help

m10 you could have easily chisled captive nut off not fastened on too well

Thanks for reply James
Did end up doing just that to one of them.
Finished the job off today must say she feels loads better with a bigger look