Originally Posted by JH225

Yep, M8x1.25 and 30mm long.

The stock bolts are very soft, and they are self starting so you can screw up the threads on both the bolt and the nut VERY easily. If you’re replacing one, I would replace them all. Stainless or just stronger bolt material is nice.

If you wanna really solve the problem: buy an M8x1.25 tap and run it in and out of each bolt hole to clean the threads before putting in each new bolt.

- if the threads are already stripped and there’s no bolt stuck in the hole, then run the M8 tap through to clean up the threads.

- bolt sheared off in a hole? Get a fresh set of drill bits and start small. Eventually you are going to drill out the entire bolt diameter and then keep going. Step up to an M10x1.25 or M10x1.50 tap and retap the threads (M10 uses an 11/32 drill bit). Then replace with M10 bolts.


Last time I crawled under my rig I had some crossed threads and one sheared bolt, so last weekend I went through and swapped everything to class 10.9 M10x1.25 (ace didn’t have an M8 tap and it was Sunday morning). Took me 90 minutes at Sunday morning pace drill and tap all skid plate bolts. Total cost of ~$30. Never going to be a problem again.


To reiterate what was said above: use thread anti-seize and NOT thread locker.


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