What bolts

[RhinoPlay]

I am in the process of switching out the plastic bumper for the rubicon steel rear bumper. My setup does not have a trailer hitch so I am going to use the suggested spacer. Does anyone know what size bolts I need for this. I have searched high and low and even went to the jeep dealerships parts department and have had no luck. I know it is an M12 but not sure of anything else

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[BDinTX]

I added the mopar hitch receiver after the fact and I had to take out the two bolts going into that spacer. I then put in the receiver, reused those two bolts and two additional bolts (sorry don’t know the dize).

I do have steel bumpers and I’m not sure if the plastic bumper is set up the same way but it might be worth checking. You might get lucky and find that spacer and bolts already there.