threads are 6mm with thread pitch of 1mm per turn. Don't know the length because i don't have them anymore, and there are a couple really long ones that go through the rear where the throttle body passage sticks up. You'd have to get some 5mm dowel to measure it if you were to source your own bolts.
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more!