Coil Pack Bolt Size?

I lost the bolts that hold my coil pack ignition system to the head on my 01 XJ. (all four of them.)

Does anyone know what size/length/thread they are?

I searched but can't find anything.

I would like to know this as well. But i would assume you could hit up the local Junkyard/Pull-A-Part and get 4 new ones.

I can tell you that the head is a 13mm, the length is 2 3/4", and the bolt is a 5/16th shaft. Not sure about the thread size though.

JeepFanatik has a plan - that is assuming you actually find a 2001 in a boneyard!